Checklist of the vascular plants of NEVADA
(excluding grasses and their allies)

ACERACEAE
Acer glabrum Torr.
   Rocky Mountain maple
Acer glabrum var. diffusum (Greene) Smiley
   Rocky Mountain maple
Acer glabrum var. douglasii (Hook.) Dippel
   Douglas maple
Acer glabrum var. glabrum Torr.
   Rocky Mountain maple
Acer glabrum var. torreyi (Greene) Smiley
   Torrey maple
Acer grandidentatum Nutt.
   bigtooth maple
Acer negundo L.
   boxelder
Acer negundo var. interius (Britt.) Sarg.
   boxelder maple

AGAVACEAE
Agave utahensis Engelm.
   Utah agave
Agave utahensis var. eborispina (Hester) Breitung
   Utah agave
Agave utahensis var. nevadensis Engelm. ex Greenm. & Roush
   Nevada agave
Agave utahensis var. utahensis Engelm.
   Utah agave
Nolina bigelovii (Torr.) S. Wats.
   Bigelow's nolina
Nolina bigelovii var. bigelovii (Torr.) S. Wats.
   Bigelow's nolina
Yucca baccata Torr.
   banana yucca
Yucca baccata var. baccata Torr.
   banana yucca
Yucca brevifolia Engelm.
   Joshua tree
Yucca brevifolia var. brevifolia Engelm.
   Joshua tree
Yucca brevifolia var. jaegeriana McKelvey
   Jaeger's Joshua tree
Yucca elata (Engelm.) Engelm.
   soaptree yucca
Yucca elata var. utahensis (McKelvey) Reveal
   Utah yucca
Yucca harrimaniae Trel.
   Spanish bayonet
Yucca harrimaniae var. harrimaniae Trel.
   Harriman's Spanish bayonet
Yucca schidigera Roezl ex Ortgies
   Mojave yucca

AIZOACEAE
Cypselea humifusa Turp.
   panal
Sesuvium verrucosum Raf.
   verrucose seapurslane
Trianthema portulacastrum L.
   desert horsepurslane

ALISMATACEAE
Alisma gramineum Lej.
   narrowleaf water plantain
Alisma triviale Pursh
   northern water plantain
Echinodorus berteroi (Spreng.) Fassett
   upright burrhead
Machaerocarpus californicus (Torr. ex Benth.) Small
   California damsonium
Sagittaria cuneata Sheldon
   arumleaf arrowhead

AMARANTHACEAE
Amaranthus albus L.
   prostrate pigweed
Amaranthus blitoides S. Wats.
   mat amaranth
Amaranthus californicus (Moq.) S. Wats.
   California amaranth
Amaranthus fimbriatus (Torr.) Benth. ex S. Wats.
   fringed amaranth
Amaranthus hybridus L.
   slim amaranth
Amaranthus palmeri S. Wats.
   carelessweed
Amaranthus powellii S. Wats.
   Powell's amaranth
Amaranthus retroflexus L.
   redroot amaranth
Tidestromia lanuginosa (Nutt.) Standl.
   woolly tidestromia
Tidestromia oblongifolia (S. Wats.) Standl.
   Arizona honeysweet

ANACARDIACEAE
Rhus glabra L.
   smooth sumac
Rhus trilobata Nutt.
   skunkbush sumac
Toxicodendron diversilobum (Torr. & Gray) Greene
   Pacific poison oak
Toxicodendron radicans ssp. diversilobum (Torr. & Gray) Thorne
= Toxicodendron diversilobum

APOCYNACEAE
Amsonia tomentosa Torr. & Frem.
   woolly bluestar
Apocynum X floribundum Greene (pro sp.)
   intermediate dogbane
Apocynum androsaemifolium L.
   spreading dogbane
Apocynum cannabinum L.
   Indianhemp
Apocynum sibiricum Jacq.
= Apocynum cannabinum

ARECACEAE
Washingtonia filifera (L. Linden) H. Wendl.
   California fan palm

ASCLEPIADACEAE
Asclepias asperula (Dcne.) Woods.
   spider milkweed
Asclepias cordifolia (Benth.) Jepson
   heartleaf milkweed
Asclepias cryptoceras S. Wats.
   pallid milkweed
Asclepias erosa Torr.
   desert milkweed
Asclepias fascicularis Dcne.
   Mexican whorled milkweed
Asclepias hallii Gray
   Hall's milkweed
Asclepias incarnata L.
   swamp milkweed
Asclepias nyctaginifolia Gray
   Mojave milkweed
Asclepias rusbyi (Vail) Woods.
   Rusby's milkweed
Asclepias speciosa Torr.
   showy milkweed
Asclepias subulata Dcne.
   rush milkweed
Asclepias subverticillata (Gray) Vail
   whorled milkweed
Asclepias uncialis Greene
   wheel milkweed
Cynanchum utahense (Engelm.) Woods.
   Utah swallowwort
Sarcostemma cynanchoides Dcne.
   fringed twinevine
Sarcostemma hirtellum (Gray) R. Holm
   hairy milkweed

ASPLENIACEAE
Asplenium resiliens Kunze
   blackstem spleenwort
Asplenium trichomanes-ramosum L.
   brightgreen spleenwort

AZOLLACEAE
Azolla filiculoides Lam.
   Pacific azolla

BERBERIDACEAE
Berberis fremontii Torr.
= Mahonia fremontii
Berberis haematocarpa Woot.
= Mahonia haematocarpa
Berberis repens Lindl.
= Mahonia repens
Mahonia fremontii (Torr.) Fedde
   Fremont's mahonia
Mahonia haematocarpa (Woot.) Fedde
   red barberry
Mahonia repens (Lindl.) G. Don
   Oregongrape

BETULACEAE
Alnus incana (L.) Moench
   mountain alder
Alnus rhombifolia Nutt.
   white alder
Betula occidentalis Hook.
   water birch

BIGNONIACEAE
Chilopsis linearis (Cav.) Sweet
   desert willow

BLECHNACEAE
Woodwardia fimbriata Sm.
   giant chainfern

BORAGINACEAE
Amsinckia menziesii (Lehm.) A. Nels. & J.F. Macbr.
   Menzies' fiddleneck
Amsinckia tessellata Gray
   bristly fiddleneck
Asperugo procumbens L.
   madwort
Cryptantha abata I.M. Johnston
   dentnut catseye
Cryptantha affinis (Gray) Greene
   quill catseye
Cryptantha ambigua (Gray) Greene
   basin catseye
Cryptantha angustifolia (Torr.) Greene
   Panamint catseye
Cryptantha barbigera (Gray) Greene
   bearded catseye
Cryptantha celosioides (Eastw.) Payson
   buttecandle
Cryptantha cinerea (Greene) Cronq.
   James' catseye
Cryptantha circumscissa (Hook. & Arn.) I.M. Johnston
   cushion catseye
Cryptantha confertiflora (Greene) Payson
   basin yellow catseye
Cryptantha dumetorum (Greene ex Gray) Greene
   bushloving catseye
Cryptantha echinella Greene
   prickly catseye
Cryptantha fendleri (Gray) Greene
   sanddune catseye
Cryptantha flavoculata (A. Nels.) Payson
   roughseed catseye
Cryptantha gracilis Osterhout
   narrowstem catseye
Cryptantha hoffmannii I.M. Johnston
   Hoffmann's catseye
Cryptantha holoptera (Gray) J.F. Macbr.
   winged catseye
Cryptantha humilis (Gray) Payson
   roundspike catseye
Cryptantha insolita (J.F. Macbr.) Payson
   Las Vegas catseye
Cryptantha intermedia (Gray) Greene
   Clearwater catseye
Cryptantha interrupta (Greene) Payson
   Elko catseye
Cryptantha maritima (Greene) Greene
   Guadalupe catseye
Cryptantha micrantha (Torr.) I.M. Johnston
   redroot catseye
Cryptantha muricata (Hook. & Arn.) A. Nels. & J.F. Macbr.
   pointed catseye
Cryptantha nevadensis A. Nels. & Kennedy
   Nevada catseye
Cryptantha oxygona (Gray) Greene
   sharpnut catseye
Cryptantha pterocarya (Torr.) Greene
   wingnut catseye
Cryptantha racemosa (S. Wats.) Greene
   bushy catseye
Cryptantha recurvata Coville
   curvenut catseye
Cryptantha rugulosa (Payson) Payson
   wrinkled catseye
Cryptantha scoparia A. Nels.
   Pinyon Desert catseye
Cryptantha setosissima (Gray) Payson
   bristly catseye
Cryptantha simulans Greene
   pinewoods catseye
Cryptantha sobolifera Payson
   Waterton Lakes catseye
Cryptantha spiculifera (Piper) Payson
   Snake River catseye
Cryptantha torreyana (Gray) Greene
   Torrey's catseye
Cryptantha tumulosa (Payson) Payson
   New York Mountain catseye
Cryptantha utahensis (Gray) Greene
   scented catseye
Cryptantha virginensis (M.E. Jones) Payson
   Virgin River catseye
Cryptantha watsonii (Gray) Greene
   Watson's catseye
Cryptantha welshii Thorne & Higgins
   Welsh's catseye
Cynoglossum officinale L.
   gypsyflower
Hackelia cronquistii J.L. Gentry
   Cronquist's stickseed
Hackelia cusickii (Piper) Brand
   Cusick's stickseed
Hackelia floribunda (Lehm.) I.M. Johnston
   manyflower stickseed
Hackelia micrantha (Eastw.) J.L. Gentry
   Jessica sticktight
Hackelia nervosa (Kellogg) I.M. Johnston
   Sierran stickseed
Hackelia ophiobia R.L. Carr
   Owyhee River stickseed
Hackelia patens (Nutt.) I.M. Johnston
   common stickseed
Hackelia sharsmithii I.M. Johnston
   Sharsmith's stickseed
Hackelia velutina (Piper) I.M. Johnston
   velvet stickseed
Heliotropium convolvulaceum (Nutt.) Gray
   phlox heliotrope
Heliotropium curassavicum L.
   salt heliotrope
Lappula occidentalis (S. Wats.) Greene
   flatspine stickseed
Lappula squarrosa (Retz.) Dumort.
   European stickseed
Lithospermum incisum Lehm.
   narrowleaf gromwell
Lithospermum ruderale Dougl. ex Lehm.
   western gromwell
Mertensia arizonica Greene
   aspen bluebells
Mertensia ciliata (James ex Torr.) G. Don
   mountain bluebells
Mertensia cusickii Piper
   Toiyabe bluebells
Mertensia franciscana Heller
   Franciscan bluebells
Mertensia longiflora Greene
   small bluebells
Mertensia oblongifolia (Nutt.) G. Don
   oblongleaf bluebells
Myosotis discolor Pers.
   changing forget me not
Myosotis laxa Lehm.
   bay forget me not
Myosotis scorpioides L.
   true forget me not
Myosotis stricta Link ex Roemer & J.A. Schultes
   strict forget me not
Pectocarya heterocarpa (I.M. Johnston) I.M. Johnston
   chuckwalla combseed
Pectocarya penicillata (Hook. & Arn.) A. DC.
   sleeping combseed
Pectocarya platycarpa (Munz & Johnston) Munz & Johnston
   broadfruit combseed
Pectocarya recurvata I.M. Johnston
   curvenut combseed
Pectocarya setosa Gray
   moth combseed
Plagiobothrys arizonicus (Gray) Greene ex Gray
   Arizona popcornflower
Plagiobothrys glomeratus Gray
   clustered popcornflower
Plagiobothrys hispidus Gray
   Cascade popcornflower
Plagiobothrys jonesii Gray
   Mojave popcornflower
Plagiobothrys kingii (S. Wats.) Gray
   Great Basin popcornflower
Plagiobothrys leptocladus (Greene) I.M. Johnston
   finebranched popcornflower
Plagiobothrys mollis (Gray) I.M. Johnston
   soft popcornflower
Plagiobothrys nothofulvus (Gray) Gray
   rusty popcornflower
Plagiobothrys salsus (Brandeg.) I.M. Johnston
   salty popcornflower
Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnston
   Scouler's popcornflower
Plagiobothrys stipitatus (Greene) I.M. Johnston
   slender popcornflower
Plagiobothrys tenellus (Nutt. ex Hook.) Gray
   Pacific popcornflower
Plagiobothrys torreyi (Gray) Gray
   Torrey's popcornflower
Tiquilia canescens (DC.) A. Richards.
   woody crinklemat
Tiquilia latior (I.M. Johnston) A. Richards.
   matted crinklemat
Tiquilia nuttallii (Hook.) A. Richards.
   Nuttall's coldenia
Tiquilia palmeri (Gray) A. Richards.
   Palmer's coldenia
Tiquilia plicata (Torr.) A. Richards.
   fanleaf crinklemat

BUDDLEJACEAE
Buddleja utahensis Coville
   Utah butterflybush

CACTACEAE
Echinocactus polycephalus Engelm. & Bigelow
   cottontop cactus
Echinocereus coccineus Engelm.
   scarlet hedgehog cactus
Echinocereus engelmannii (Parry ex Engelm.) Lem.
   saints cactus
Echinocereus triglochidiatus Engelm.
   kingcup cactus
Escobaria vivipara (Nutt.) Buxbaum
   spinystar
Ferocactus cylindraceus (Engelm.) Orcutt
   California barrelcactus
Mammillaria tetrancistra Engelm.
   common fishhook cactus
Opuntia acanthocarpa Engelm. & Bigelow
   buckhorn cholla
Opuntia basilaris Engelm. & Bigelow
   beavertail pricklypear
Opuntia bigelovii Engelm.
   teddybear cholla
Opuntia chlorotica Engelm. & Bigelow
   dollarjoint pricklypear
Opuntia curvospina Griffiths
   Searchlight pricklypear
Opuntia echinocarpa Engelm. & Bigelow
   staghorn cholla
Opuntia engelmannii Salm-Dyck
   cactus apple
Opuntia erinacea Engelm. & Bigelow ex Engelm.
   grizzlybear pricklypear
Opuntia fragilis (Nutt.) Haw.
   brittle pricklypear
Opuntia martiniana (L. Benson) Parfitt
   seashore cactus
Opuntia parishii Orcutt
   matted cholla
Opuntia phaeacantha Engelm.
   tulip pricklypear
Opuntia polyacantha Haw.
   plains pricklypear
Opuntia pulchella Engelm.
   sagebrush cholla
Opuntia ramosissima Engelm.
   branched pencil cholla
Opuntia whipplei Engelm. & Bigelow
   Whipple cholla
Pediocactus simpsonii (Engelm.) Britt. & Rose
   Simpson hedgehog cactus
Sclerocactus blainei Welsh & Thorne
   Nye County fishhook cactus
Sclerocactus johnsonii (Parry ex Engelm.) N.P. Taylor
   Johnson's fishhook cactus
Sclerocactus parviflorus Clover & Jotter
   smallflower fishhook cactus
Sclerocactus polyancistrus (Engelm. & Bigelow) Britt. & Rose
   redspined fishhook cactus
Sclerocactus pubispinus (Engelm.) L. Benson
   Great Basin fishhook cactus
Sclerocactus schlesseri Heil & Welsh
   Schlesser's fishhook cactus

CALLITRICHACEAE
Callitriche hermaphroditica L.
   northern waterstarwort
Callitriche heterophylla Pursh
   larger waterstarwort
Callitriche palustris L.
   vernal waterstarwort

CAMPANULACEAE
Campanula rapunculoides L.
   rampion bellflower
Downingia bacigalupii Weiler
   Bach's calicoflower
Downingia bicornuta Gray
   doublehorn calicoflower
Downingia elegans (Dougl. ex Lindl.) Torr.
   elegant calicoflower
Downingia insignis Greene
   harlequin calicoflower
Downingia laeta (Greene) Greene
   Great Basin calicoflower
Heterocodon rariflorum Nutt.
   rareflower heterocodon
Lobelia cardinalis L.
   cardinalflower
Nemacladus glanduliferus Jepson
   glandular threadplant
Nemacladus rigidus Curran
   stoutstem threadplant
Nemacladus rubescens Greene
   desert threadplant
Nemacladus sigmoideus G.T. Robbins
   sigmoid threadplant
Porterella carnosula (Hook. & Arn.) Torr.
   fleshy porterella

CANNABACEAE
Humulus lupulus L.
   common hop
Humulus lupulus var. neomexicanus A. Nels. & Cockerell
   common hop

CAPPARACEAE
Cleome lutea Hook.
   yellow spiderflower
Cleome lutea var. lutea Hook.
   yellow spiderflower
Cleome platycarpa Torr.
   golden spiderflower
Cleome serrulata Pursh
   Rocky Mountain beeplant
Cleome sparsifolia S. Wats.
   fewleaf spiderflower
Cleomella brevipes S. Wats.
   shortstalk stinkweed
Cleomella hillmanii A. Nels.
   Hillman's stinkweed
Cleomella obtusifolia Torr. & Frem.
Mojave cleomella
Cleomella parviflora Gray
   slender cleomella
Cleomella plocasperma S. Wats.
   twisted cleomella
Oxystylis lutea Torr. & Frem.
   spiny caper
Polanisia dodecandra (L.) DC.
   roughseed clammyweed
Wislizenia refracta Engelm.
   jackass clover

CAPRIFOLIACEAE
Lonicera caerulea L.
   sweetberry honeysuckle
Lonicera conjugialis Kellogg
   purpleflower honeysuckle
Lonicera involucrata Banks ex Spreng.
   twinberry honeysuckle
Lonicera japonica Thunb.
   Japanese honeysuckle
Sambucus cerulea var. cerulea Raf.
    elderberry
Sambucus nigra L.
   European black elder
Sambucus racemosa L.
   scarlet elderberry
Symphoricarpos acutus (Gray) Dieck
   sharpleaf snowberry
Symphoricarpos longiflorus Gray
   desert snowberry
Symphoricarpos mollis Nutt.
   creeping snowberry
Symphoricarpos oreophilus Gray
   whortleleaf snowberry
Symphoricarpos rotundifolius Gray
   roundleaf snowberry

CARYOPHYLLACEAE
Achyronychia cooperi Torr. & Gray
   onyxflower
Arenaria aculeata S. Wats.
   prickly sandwort
Arenaria capillaris Poir.
   mountain sandwort
Arenaria congesta Nutt.
   ballhead sandwort
Arenaria fendleri Gray
   Fendler's sandwort
Arenaria franklinii Dougl. ex Hook.
   Franklin's sandwort
Arenaria hookeri Nutt.
   Hooker's sandwort
Arenaria kingii (S. Wats.) M.E. Jones
   King's sandwort
Arenaria macradenia S. Wats.
   Mojave sandwort
Arenaria pumicola Coville & Leib.
   Crater Lake sandwort
Arenaria serpyllifolia L.
   thymeleaf sandwort
Arenaria stenomeres Eastw.
   Meadow Valley sandwort
Cerastium alpinum L.
   alpine chickweed
Cerastium arvense L.
   field chickweed
Cerastium fontanum Baumg.
   common chickweed
Dianthus armeria L.
   Deptford pink
Gypsophila paniculata L.
   babysbreath gypsophila
Holosteum umbellatum L.
   jagged chickweed
Loeflingia squarrosa Nutt.
   spreading pygmyleaf
Minuartia filiorum (Maguire) McNeill
   threadbranch stitchwort
Minuartia nuttallii (Pax) Briq.
   Nuttall's sandwort
Minuartia obtusiloba (Rydb.) House
   twinflower sandwort
Minuartia pusilla (S. Wats.) Mattf.
   annual sandwort
Minuartia rubella (Wahlenb.) Hiern
   beautiful sandwort
Moehringia lateriflora (L.) Fenzl
   bluntleaf sandwort
Paronychia sessiliflora Nutt.
   creeping nailwort
Pseudostellaria jamesiana (Torr.) W.A. Weber & R.L. Hartman
   tuber starwort
Sagina saginoides (L.) Karst.
   arctic pearlwort
Saponaria officinalis L.
   bouncingbet
Scopulophila rixfordii (Brandeg.) Munz & Johnston
   Rixford's rockwort
Silene acaulis (L.) Jacq.
   moss campion
Silene antirrhina L.
   sleepy silene
Silene bernardina S. Wats.
   Palmer's catchfly
Silene clokeyi C.L. Hitchc. & Maguire
   Clokey's catchfly
Silene conoidea L.
   weed silene
Silene douglasii Hook.
   Douglas's campion
Silene drummondii Hook.
   Drummond's campion
Silene latifolia Poir.
   bladder campion
Silene menziesii Hook.
   Menzies' campion
Silene nachlingerae Tiehm
   Nevada catchfly
Silene nuda (S. Wats.) C.L. Hitchc. & Maguire
   barestem silene
Silene oregana S. Wats.
   Oregon silene
Silene repens Patrin ex Pers.
   pink campion
Silene sargentii S. Wats.
   Sargent's catchfly
Silene scaposa B.L. Robins.
   stem silene
Silene uralensis (Rupr.) Bocquet
   apetalous catchfly
Silene verecunda S. Wats.
   San Francisco campion
Spergularia atrosperma R.P. Rossb.
   blackseed sandspurry
Spergularia rubra (L.) J.& K. Presl
   red sandspurry
Spergularia salina J.& K. Presl
   salt sandspurry
Stellaria calycantha (Ledeb.) Bong.
   northern starwort
Stellaria crassifolia Ehrh.
   fleshy starwort
Stellaria crispa Cham. & Schlecht.
   curled starwort
Stellaria graminea L.
   grasslike starwort
Stellaria longifolia Muhl. ex Willd.
   longleaf starwort
Stellaria longipes Goldie
   longstalk starwort
Stellaria media (L.) Vill.
   common chickweed
Stellaria umbellata Turcz. ex Kar. & Kir.
   umbrella starwort
Vaccaria hispanica (P. Mill.) Rauschert
   cow soapwort

CELASTRACEAE
Mortonia utahensis (Coville ex Gray) A. Nels.
   Utah mortonia

CERATOPHYLLACEAE
Ceratophyllum demersum L.
   coon's tail

CHENOPODIACEAE
Allenrolfea occidentalis (S. Wats.) Kuntze
   iodinebush
Atriplex argentea Nutt.
   silverscale saltbush
Atriplex bonnevillensis C.A. Hanson
   Bonneville saltbush
Atriplex canescens (Pursh) Nutt.
   fourwing saltbush
Atriplex confertifolia (Torr. & Frem.) S. Wats.
   shadscale saltbush
Atriplex elegans (Moq.) D. Dietr.
   wheelscale saltbush
Atriplex falcata (M.E. Jones) Standl.
   sickle saltbush
Atriplex hortensis L.
   garden orache
Atriplex hymenelytra (Torr.) S. Wats.
   desertholly
Atriplex lentiformis (Torr.) S. Wats.
   big saltbush
Atriplex micrantha Ledeb.
   twoscale saltbush
Atriplex parryi S. Wats.
   Parry's saltbush
Atriplex patula L.
   spear saltbush
Atriplex phyllostegia (Torr. ex S. Wats.) S. Wats.
   leafcover saltweed
Atriplex polycarpa (Torr.) S. Wats.
   cattle saltbush
Atriplex pusilla (Torr. ex S. Wats.) S. Wats.
   smooth saltbush
Atriplex rosea L.
   tumbling saltweed
Atriplex saccaria S. Wats.
   sack saltbush
Atriplex semibaccata R. Br.
   Australian saltbush
Atriplex serenana A. Nels.
   bractscale
Atriplex subspicata (Nutt.) Rydb.
   saline saltbush
Atriplex torreyi (S. Wats.) S. Wats.
   Torrey's saltbush
Atriplex tridentata Kuntze
   basin saltbush
Atriplex truncata (Torr. ex S. Wats.) Gray
   wedgescale saltbush
Bassia hyssopifolia (Pallas) Kuntz
   fivehorn smotherweed
Chenopodium albescens Small
   pale goosefoot
Chenopodium album L.
   lambsquarters
Chenopodium ambrosioides L.
   Mexican tea
Chenopodium atrovirens Rydb.
   pinyon goosefoot
Chenopodium berlandieri Moq.
   pitseed goosefoot
Chenopodium botrys L.
   Jerusalem oak goosefoot
Chenopodium capitatum (L.) Ambrosi
   blite goosefoot
Chenopodium chenopodioides (L.) Aellen
Chenopodium desiccatum A. Nels.
   aridland goosefoot
Chenopodium foliosum (Moench) Aschers.
   leafy goosefoot
Chenopodium fremontii S. Wats.
   Fremont's goosefoot
Chenopodium glaucum L.
   oakleaf goosefoot
Chenopodium hians Standl.
   hians goosefoot
Chenopodium humile Hook.
   marshland goosefoot
Chenopodium incanum (S. Wats.) Heller
   mealy goosefoot
Chenopodium murale L.
   nettleleaf goosefoot
Chenopodium nevadense Standl.
   Nevada goosefoot
Chenopodium overi Aellen
   Over's goosefoot
Chenopodium pratericola Rydb.
   desert goosefoot
Chenopodium pumilio R. Br.
   clammy goosefoot
Chenopodium rubrum L.
   red goosefoot
Chenopodium salinum Standl.
   Rocky Mountain goosefoot
Chenopodium simplex (Torr.) Raf.
   mapleleaf goosefoot
Chenopodium strictum Roth
   ateflowering goosefoot
Chenopodium subglabrum (S. Wats.) A. Nels.
   smooth goosefoot
Corispermum hyssopifolium L.
   common bugseed
Cycloloma atriplicifolium (Spreng.) Coult.
   winged pigweed
Grayia spinosa (Hook.) Moq.
   spiny hopsage
Halogeton glomeratus (Bieb.) C.A. Mey.
   alogeton
Kochia americana S. Wats.
   greenmolly
Kochia californica S. Wats.
   rusty molly kochia
Kochia prostrata (L.) Schrad.
   prostrate summercypress
Kochia scoparia (L.) Schrad.
   common kochia
Krascheninnikovia lanata (Pursh) Guldenstaedt
   winterfat
Monolepis nuttalliana (J.A. Schultes) Greene
   Nuttall's povertyweed
Monolepis pusilla Torr. ex S. Wats.
   small monolepis
Monolepis spathulata Gray
   beaver monolepis
Nitrophila mohavensis Munz & Roos
   Amargosa alkaliplant
Nitrophila occidentalis (Moq.) S. Wats.
   western miterwort
Salicornia maritima Wolff & Jefferies
   slender grasswort
Salicornia rubra A. Nels.
   red swampfire
Salsola kali L.
   prickly Russian thistle
Salsola paulsenii Litv.
   barbwire Russian thistle
Sarcobatus vermiculatus (Hook.) Torr.
   greasewood
Suaeda calceoliformis (Hook.) Moq.
   Pursh seepweed
Suaeda moquinii (Torr.) Greene
   Mojave seablite

CLUSIACEAE
Hypericum anagalloides Cham. & Schlecht.
   trailing St. Johnswort
Hypericum perforatum L.
   common St. Johnswort
Hypericum scouleri Hook.
   Scouler's St. Johnswort

COMPOSITAE
Acamptopappus shockleyi Gray
   Shockley's goldenhead
Acamptopappus sphaerocephalus (Harvey & Gray ex Gray) Gray
   rayless goldenhead
Achillea lanulosa Nutt.
= Achillea millefolium var. occidentalis
Achillea millefolium L.
   common yarrow
Achillea millefolium var. alpicola (Rydb.) Garrett
   common yarrow
Achillea millefolium var. occidentalis DC.
   western yarrow
Acourtia wrightii (Gray) Reveal & King
   brownfoot
Acroptilon repens (L.) DC.
   hardheads
Adenophyllum cooperi (Gray) Strother
   Cooper's dogweed
Adenophyllum porophylloides (Gray) Strother
   San Felipe dogweed
Ageratina herbacea (Gray) King & H.E. Robins.
   fragrant snakeroot
Ageratina occidentalis (Hook.) King & H.E. Robins.
   western snakeroot
Agoseris aurantiaca (Hook.) Greene
   orange agoseris
Agoseris elata (Nutt.) Greene
   tall agoseris
Agoseris glauca (Pursh) Raf.
   pale agoseris
Agoseris grandiflora (Nutt.) Greene
   bigflower agoseris
Agoseris heterophylla (Nutt.) Greene
   annual agoseris
Agoseris retrorsa (Benth.) Greene
   spearleaf agoseris
Ambrosia acanthicarpa Hook.
   flatspine burr ragweed
Ambrosia artemisiifolia L.
   annual ragweed
Ambrosia dumosa (Gray) Payne
   white burrobush
Ambrosia eriocentra (Gray) Payne
   woolly fruit burr ragweed
Ambrosia psilostachya DC.
   Cuman ragweed
Amphipappus fremontii Torr. & Gray
   Fremont's chaffbush
Anaphalis margaritacea (L.) Benth. & Hook. f.
   western pearlyeverlasting
Anisocoma acaulis Torr. & Gray
   scalebud
Antennaria anaphaloides Rydb.
   pearly pussytoes
Antennaria arcuata Cronq.
   box pussytoes
Antennaria argentea Benth.
   silver pussytoes
Antennaria corymbosa E. Nels.
   flattop pussytoes
Antennaria dimorpha (Nutt.) Torr. & Gray
   low pussytoes
Antennaria geyeri Gray
   pinewoods pussytoes
Antennaria media Greene
   Rocky Mountain pussytoes
Antennaria microphylla Rydb.
   littleleaf pussytoes
Antennaria parvifolia Nutt.
   smallleaf pussytoes
Antennaria rosea Greene
   rosy pussytoes
Antennaria soliceps Blake
   Charleston Mountain pussytoes
Antennaria stenophylla (Gray) Gray
   narrowleaf pussytoes
Antennaria umbrinella Rydb.
   umber pussytoes
Anthemis cotula L.
   stinking chamomile
Antheropeas lanosum (Gray) Rydb.
   white easterbonnets
Antheropeas wallacei (Gray) Rydb.
   woolly easterbonnets
Arctium lappa L.
   greater burrdock
Arctium minus Bernh.
   lesser burrdock
Arnica amplexicaulis Nutt.
   clasping arnica
Arnica chamissonis Less.
   chamisso arnica
Arnica cordifolia Hook.
   heartleaf arnica
Arnica discoidea Benth.
   rayless arnica
Arnica fulgens Pursh
   foothill arnica
Arnica latifolia Bong.
   broadleaf arnica
Arnica longifolia D.C. Eat.
   spearleaf arnica
Arnica mollis Hook.
   hairy arnica
Arnica nevadensis Gray
   Nevada arnica
Arnica parryi Gray
   Parry's arnica
Arnica rydbergii Greene
   Rydberg's arnica
Arnica sororia Greene
   twin arnica
Artemisia arbuscula Nutt.
   low sagebrush
Artemisia biennis Willd.
   biennial wormwood
Artemisia bigelovii Gray
   Bigelow's sagebrush
Artemisia campestris L.
   field sagewort
Artemisia cana Pursh
   silver sagebrush
Artemisia douglasiana Bess.
   Douglas' sagewort
Artemisia dracunculoides Pursh
= Artemisia dracunculus ssp. dracunculus
Artemisia dracunculus L.
   wormwood
Artemisia dracunculus ssp. dracunculus L.
   wormwood
Artemisia filifolia Torr.
   sand sagebrush
Artemisia frigida Willd.
   fringed sagewort
Artemisia ludoviciana Nutt.
   Louisiana sagewort
Artemisia ludoviciana ssp. albula (Woot.) Keck
   white sagebrush
Artemisia ludoviciana ssp. candicans (Rydb.) Keck
   gray sagewort
Artemisia ludoviciana ssp. incompta (Nutt.) Keck
   mountain sagewort
Artemisia ludoviciana ssp. ludoviciana Nutt.
   foothill sagewort
Artemisia ludoviciana ssp. mexicana (Willd. ex Spreng.) Keck
   Mexican white sagebrush
Artemisia michauxiana Bess.
   Michaux's sagebrush
Artemisia nova A. Nels.
   black sagebrush
Artemisia packardiae J. Grimes & Ertter
   Packard's wormwood
Artemisia papposa Blake & Cronq.
   fuzzy sagebrush
Artemisia pygmaea Gray
   pygmy sagebrush
Artemisia rothrockii Gray
   timberline sagebrush
Artemisia scopulorum Gray
   alpine sagebrush
Artemisia spinescens D.C. Eat.
   bud sagebrush
Artemisia tilesii Ledeb.
   Tilesius' wormwood
Artemisia tridentata Nutt.
   big sagebrush
Artemisia tridentata ssp. tridentata Nutt.
   basin big sagebrush
Artemisia tridentata ssp. vaseyana (Rydb.) Beetle
   mountain big sagebrush
Artemisia tridentata ssp. wyomingensis Beetle & Young
   Wyoming big sagebrush
Artemisia tripartita Rydb.
   threetip sagebrush
Artemisia tripartita ssp. tripartita Rydb.
   Idaho threetip sagebrush
Aster ascendens Lindl.
   Chile aster
Aster bracteolatus Nutt. (pro sp.)
   bract aster
Aster campestris Nutt.
   meadow aster
Aster eatonii (Gray) T.J. Howell
   Eaton's aster
Aster foliaceus Lindl. ex DC.
   alpine leafybract aster
Aster integrifolius Nutt.
   thickstem aster
Aster laevis L.
   smooth aster
Aster lanceolatus Willd.
   white panicle aster
Aster occidentalis (Nutt.) Torr. & Gray
   western aster
Aster occidentalis var. intermedius Gray
   intermediate aster
Aster perelegans A. Nels. & J.F. Macbr.
   elegant aster
Aster subspicatus Nees
   Douglas aster
Aster subulatus Michx.
   annual saltmarsh aster
Atrichoseris platyphylla (Gray) Gray
   parachute plant
Baccharis brachyphylla Gray
   shortleaf baccharis
Baccharis emoryi Gray
   Emory's baccharis
Baccharis salicifolia (Ruiz & Pavon) Pers.
   mule's fat
Baccharis sarothroides Gray
   desertbroom
Baccharis sergiloides Gray
   squaw waterweed baccharis
Bahia dissecta (Gray) Britt.
   ragleaf bahia
Baileya multiradiata Harvey & Gray ex Gray
   desert marigold
Baileya pleniradiata Harvey & Gray ex Gray
   woolly desert marigold
Balsamita major Desf.
   costmary
Balsamorhiza hookeri (Hook.) Nutt.
   Hooker's balsamroot
Balsamorhiza macrolepis Sharp
   California balsamroot
Balsamorhiza sagittata (Pursh) Nutt.
   arrowleaf balsamroot
Balsamorhiza serrata A. Nels. & J.F. Macbr.
   serrate balsamroot
Bebbia juncea (Benth.) Greene
   sweetbush
Bidens cernua L.
   nodding beggartick
Bidens frondosa L.
   devil's beggartick
Bidens laevis (L.) B.S.P.
   smooth beggartick
Bidens vulgata Greene
   big devils beggartick
Blepharipappus scaber Hook.
   rough eyelashweed
Brachyactis ciliata (Ledeb.) Ledeb.
   alkali rayless aster
Brachyactis frondosa (Nutt.) Gray
   leafy rayless aster
Brickellia arguta B.L. Robins.
Brickellia atractyloides Gray
   spearleaf brickellbush
Brickellia californica (Torr. & Gray) Gray
   California brickellbush
Brickellia desertorum Coville
Brickellia frutescens Gray
   shrubby brickellbush
Brickellia grandiflora (Hook.) Nutt.
   tasselflower brickellbush
Brickellia incana Gray
   woolly brickellbush
Brickellia knappiana E. Drew
   Knapp brickellbush
Brickellia longifolia S. Wats.
   longleaf brickellbush
Brickellia microphylla (Nutt.) Gray
   littleleaf brickellbush
Brickellia multiflora Kellogg
= Brickellia longifolia var. multiflora
Brickellia oblongifolia Nutt.
   Mojave brickellbush
Calycoseris parryi Gray
   yellow tackstem
Calycoseris wrightii Gray
   white tackstem
Carduus nutans L.
   nodding plumeless thistle
Carthamus lanatus L.
   woolly distaff thistle
Centaurea biebersteinii DC.
   spotted knapweed
Centaurea cyanus L.
   garden cornflower
Centaurea diffusa Lam.
   white knapweed
Centaurea melitensis L.
   Maltese star thistle
Centaurea solstitialis L.
   yellow star thistle
Centaurea triumfettii All.
   squarrose knapweed
Chaenactis alpigena C.W. Sharsmith
   southern Sierran pincushion
Chaenactis carphoclinia Gray
   pebble pincushion
Chaenactis douglasii (Hook.) Hook. & Arn.
   Douglas' dustymaiden
Chaenactis evermannii Greene
   Evermann's pincushion
Chaenactis fremontii Gray
   pincushion flower
Chaenactis macrantha D.C. Eat.
   bighead dustymaiden
Chaenactis nevadensis (Kellogg) Gray
   Nevada dustymaiden
Chaenactis stevioides Hook. & Arn.
   Steve's dustymaiden
Chaenactis xantiana Gray
   fleshcolor pincushion
Chaetadelpha Gray ex S. Wats.
   skeletonweed
Chaetadelpha wheeleri Gray ex S. Wats.
   Wheeler's skeletonweed
Chaetopappa ericoides (Torr.) Nesom
   rose heath
Chloracantha spinosa (Benth.) Nesom
   spiny chloracantha
Chrysanthemum leucanthemum L.
= Leucanthemum vulgare
Chrysanthemum parthenium (L.) Bernh.
= Tanacetum parthenium
Chrysothamnus albidus (M.E. Jones ex Gray) Greene
   whiteflower rabbitbrush
Chrysothamnus depressus Nutt.
   longflower rabbitbrush
Chrysothamnus eremobius L.C. Anders.
   pintwater rabbitbrush
Chrysothamnus greenei (Gray) Greene
   Greene's rabbitbrush
Chrysothamnus humilis Greene
   Truckee rabbitbrush
Chrysothamnus nauseosus (Pallas ex Pursh) Britt.
= Ericameria nauseosa ssp. nauseosa var. nauseosa
Chrysothamnus paniculatus (Gray) Hall
= Ericameria paniculata
Chrysothamnus parryi (Gray) Greene
= Ericameria parryi var. parryi
Chrysothamnus teretifolius (Dur. & Hilg.) Hall
= Ericameria teretifolia
Chrysothamnus vaseyi (Gray) Greene
   Vasey's rabbitbrush
Chrysothamnus viscidiflorus (Hook.) Nutt.
   green rabbitbrush
Cichorium intybus L.
   chicory
Cirsium andersonii (Gray) Petrak
   rose thistle
Cirsium arvense (L.) Scop.
   Canadian thistle
Cirsium canovirens (Rydb.) Petrak
   graygreen thistle
Cirsium clokeyi Blake
   whitespine thistle
Cirsium douglasii DC.
   Douglas' thistle
Cirsium eatonii (Gray) B.L. Robins.
   Eaton's thistle
Cirsium mohavense (Greene) Petrak
   Mojave thistle
Cirsium neomexicanum Gray
   New Mexico thistle
Cirsium occidentale (Nutt.) Jepson
   cobwebby thistle
Cirsium pastoris J.T. Howell
   snowy thistle
Cirsium subniveum Rydb.
   Jackson Hole thistle
Cirsium tioganum (Congd.) Petrak
   stemless thistle
Cirsium undulatum (Nutt.) Spreng.
   wavyleaf thistle
Cirsium vulgare (Savi) Ten.
   bull thistle
Cirsium wheeleri (Gray) Petrak
   Wheeler's thistle
Conyza bonariensis (L.) Cronq.
   asthmaweed
Conyza canadensis (L.) Cronq.
   Canadian horseweed
Cotula coronopifolia L.
   common brassbuttons
Crepis acuminata Nutt.
   longleaf hawksbeard
Crepis atribarba Heller
   slender hawksbeard
Crepis bakeri Greene
   Baker's hawksbeard
Crepis capillaris Wallr.
   smooth hawksbeard
Crepis intermedia Gray
   limestone hawksbeard
Crepis modocensis Greene
   Siskiyou hawksbeard
Crepis nana Richards.
   dwarf alpine hawksbeard
Crepis occidentalis Nutt.
   largeflower hawksbeard
Crepis pleurocarpa Gray
   nakedstem hawksbeard
Crepis runcinata (James) Torr. & Gray
   fiddleleaf hawksbeard
Dicoria canescens Gray
   desert twinbugs
Dimeresia howellii Gray
   doublet
Dugaldia hoopesii (Gray) Rydb.
= Hymenoxys hoopesii
Dyssodia papposa (Vent.) A.S. Hitchc.
   fetid marigold
Eatonella nivea (D.C. Eat.) Gray
   white false tickhead
Encelia farinosa Gray ex Torr.
   goldenhills
Encelia frutescens (Gray) Gray
   button brittlebush
Encelia virginensis A. Nels.
   Virgin River brittlebush
Enceliopsis argophylla (D.C. Eat.) A. Nels.
   silverleaf sunray
Enceliopsis covillei (A. Nels.) Blake
   Panamint daisy
Enceliopsis nudicaulis (Gray) A. Nels.
   nakedstem sunray
Ericameria bloomeri (Gray) J.F. Macbr.
   rabbitbush heathgoldenrod
Ericameria compacta (Hall) Nesom
   Charleston Mountain heathgoldenrod
Ericameria cooperi (Gray) Hall
   Cooper's heathgoldenrod
Ericameria cuneata (Gray) McClatchie
   cliff heathgoldenrod
Ericameria discoidea (Nutt.) Nesom
   whitestem heathgoldenrod
Ericameria laricifolia (Gray) Shinners
   turpentine bush
Ericameria linearifolia (DC.) Urbatsch & Wussow
   narrowleaf heathgoldenrod
Ericameria nana Nutt.
   dwarf heathgoldenrod
Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird
Ericameria paniculata (Gray) Rydb.
Ericameria parryi (Gray) Nesom
Ericameria suffruticosa (Nutt.) Nesom
   singlehead heathgoldenrod
Ericameria teretifolia (Dur. & Hilg.) Jepson
Ericameria watsonii (Gray) Nesom
   Watson's heathgoldenrod
Erigeron algidus Jepson
   stalked fleabane
Erigeron aphanactis (Gray) Greene
   rayless shaggy fleabane
Erigeron argentatus Gray
   silver fleabane
Erigeron asperugineus (D.C. Eat.) Gray
   Idaho fleabane
Erigeron austiniae Greene
   dwarf yellow fleabane
Erigeron bloomeri Gray
   scabland fleabane
Erigeron breweri Gray
   Brewer's fleabane
Erigeron chrysopsidis Gray
   dwarf yellow fleabane
Erigeron clokeyi Cronq.
   Clokey's fleabane
Erigeron colomexicanus A. Nels.
   running fleabane
Erigeron compactus Blake
   fernleaf fleabane
Erigeron compositus Pursh
   cutleaf daisy
Erigeron concinnus (Hook. & Arn.) Torr. & Gray
   Navajo fleabane
Erigeron coulteri Porter
   large mountain fleabane
Erigeron divergens Torr. & Gray
   spreading fleabane
Erigeron eatonii Gray
   Eaton's fleabane
Erigeron filifolius (Hook.) Nutt.
   threadleaf fleabane
Erigeron flagellaris Gray
   trailing fleabane
Erigeron inornatus (Gray) Gray
   California rayless fleabane
Erigeron jonesii Cronq.
   Jones' fleabane
Erigeron leiomerus Gray
   rockslide yellow fleabane
Erigeron linearis (Hook.) Piper
   desert yellow fleabane
Erigeron lobatus A. Nels.
   lobed fleabane
Erigeron lonchophyllus Hook.
Erigeron nauseosus (M.E. Jones) A. Nels.
   Marysvale fleabane
Erigeron nevadincola Blake
   Nevada fleabane
Erigeron ovinus Cronq.
   sheep fleabane
Erigeron peregrinus (Banks ex Pursh) Greene
   subalpine fleabane
Erigeron pumilus Nutt.
   shaggy fleabane
Erigeron pygmaeus (Gray) Greene
   pygmy fleabane
Erigeron simplex Greene
   onestem fleabane
Erigeron speciosus (Lindl.) DC.
   aspen fleabane
Erigeron tener (Gray) Gray
   slender fleabane
Erigeron uncialis Blake
   lone fleabane
Erigeron ursinus D.C. Eat.
   Bear River fleabane
Erigeron vagus Payson
   rambling fleabane
Erigeron watsonii (Gray) Cronq.
   Watson's fleabane
Eriophyllum ambiguum (Gray) Gray
   beautiful woollysunflower
Eriophyllum lanatum (Pursh) Forbes
   woolly eriophyllum
Eriophyllum pringlei Gray
   Pringle's woollysunflower
Eucephalus engelmannii (D.C. Eat.) Greene
Eupatorium herbaceum (Gray) Greene
= Ageratina herbacea
Eupatorium occidentale Hook.
= Ageratina occidentalis
Euthamia Nutt. ex Cass.
   goldentop
Euthamia occidentalis Nutt.
   western goldentop
Filago depressa Gray
   dwarf cottonrose
Gaillardia arizonica Gray
   Arizona blanketflower
Gaillardia pinnatifida Torr.
   red dome blanketflower
Gaillardia pulchella Foug.
   firewheel
Geraea canescens Torr. & Gray
   hairy desertsunflower
Glyptopleura marginata D.C. Eat.
   carveseed
Glyptopleura setulosa Gray
   holy dandelion
Gnaphalium palustre Nutt.
   western marsh cudweed
Grindelia camporum Greene
   Great Valley gumweed
Grindelia fraxinopratensis Reveal & Beatley
   Ash Meadows gumweed
Grindelia nana Nutt.
   Idaho gumweed
Grindelia squarrosa (Pursh) Dunal
   curlycup gumweed
Gutierrezia microcephala (DC.) Gray
   threadleaf snakeweed
Gutierrezia sarothrae (Pursh) Britt. & Rusby
   broom snakeweed
Haplopappus laricifolius Gray
= Ericameria laricifolia
Haplopappus linearifolius DC.
= Ericameria linearifolia
Hazardia brickellioides (Blake) W.D. Clark
   brickellbush goldenweed
Hecastocleis shockleyi Gray
   prickleleaf
Helenium autumnale L.
   common sneezeweed
Helenium autumnale var. montanum (Nutt.) Fern.
   mountain sneezeweed
Helenium hoopesii Gray
= Hymenoxys hoopesii
Helianthella californica Gray
   California helianthella
Helianthella quinquenervis (Hook.) Gray
   fivenerve helianthella
Helianthella uniflora (Nutt.) Torr. & Gray
   oneflower helianthella
Helianthus annuus L.
   common sunflower
Helianthus anomalus Blake
   western sunflower
Helianthus ciliaris DC.
   Texas blueweed
Helianthus cusickii Gray
   Cusick's sunflower
Helianthus niveus (Benth.) Brandeg.
   showy sunflower
Helianthus nuttallii Torr. & Gray
   Nuttall's sunflower
Helianthus petiolaris Nutt.
   prairie sunflower
Heliomeris longifolia (Robins. & Greenm.) Cockerell
   longleaf falsegoldeneye
Heliomeris multiflora Nutt.
   showy goldeneye
Hemizonia pungens (Hook. & Arn.) Torr. & Gray
   common spikeweed
Heterotheca grandiflora Nutt.
   telegraphweed
Heterotheca subaxillaris (Lam.) Britt. & Rusby
   camphorweed
Heterotheca villosa (Pursh) Shinners
   hairy goldenaster
Hieracium albiflorum Hook.
   white hawkweed
Hieracium horridum Fries
   prickly hawkweed
Hieracium scouleri Hook.
   woollyweed
Hulsea algida Gray
   pain hulsea
Hulsea heterochroma Gray
   redray alpinegold
Hulsea vestita Gray
   pumice alpinegold
Hymenoclea monogyra Torr. & Gray ex Gray
   singlewhorl burrobush
Hymenoclea salsola Torr. & Gray ex Gray
   white burrobush
Hymenopappus filifolius Hook.
   fineleaf hymenopappus
Hymenothrix loomisii Blake
   Loomis' thimblehead
Hymenoxys cooperi (Gray) Cockerell
   Cooper's hymenoxys
Hymenoxys helenioides (Rydb.) Cockerell
   Intermountain hymenoxys
Hymenoxys hoopesii (Gray) Bierner
Hymenoxys lemmonii (Greene) Cockerell
   Lemmon's rubberweed
Hypochaeris radicata L.
   hairy catsear
Ionactis alpina (Nutt.) Greene
   alpine ionactis
Isocoma acradenia (Greene) Greene
   alkali jimmyweed
Iva acerosa (Nutt.) R.C. Jackson
   copperweed
Iva axillaris Pursh
   povertyweed
Iva nevadensis M.E. Jones
   Nevada sumpweed
Iva xanthifolia Nutt.
   giant sumpweed
Lactuca saligna L.
   willowleaf lettuce
Lactuca serriola L.
   prickly lettuce
Lactuca tatarica (L.) C.A. Mey.
   blue lettuce
Laennecia coulteri (Gray) Nesom
   conyza
Lagophylla ramosissima Nutt.
   branched lagophylla
Layia glandulosa (Hook.) Hook. & Arn.
   whitedaisy tidytips
Leontodon taraxacoides (Vill.) Merat
   lesser hawkbit
Lepidospartum latisquamum S. Wats.
   Nevada broomsage
Lessingia lemmonii Gray
   Lemmon's vinegarweed
Leucanthemum leucanthemum (L.) Rydb.
= Leucanthemum vulgare
Leucanthemum vulgare Lam.
   oxeyedaisy
Lygodesmia D. Don
   skeletonplant
Lygodesmia dianthopsis (Eat. ex King) S. Tomb
   Antelope Island skeletonplant
Lygodesmia juncea (Pursh) D. Don ex Hook.
   rush skeletonplant
Machaeranthera arida B.L. Turner & Horne
   arid tansyaster
Machaeranthera asteroides var. asteroides (Torr.) Greene
   New Mexico tansyaster
Machaeranthera canescens (Pursh) Gray
   hoary aster
Machaeranthera carnosa (Gray) Nesom
   shrubby alkali aster
Machaeranthera coulteri (Gray) B.L. Turner & Horne
   Silver Lake daisy
Machaeranthera gracilis (Nutt.) Shinners
   slender goldenweed
Machaeranthera grindelioides (Nutt.) Shinners
   rayless aster
Machaeranthera pinnatifida (Hook.) Shinners
   lacy tansyaster
Machaeranthera tanacetifolia (Kunth) Nees
   tanseyleaf aster
Madia citriodora Greene
   lemonscented madia
Madia elegans D. Don ex Lindl.
   common madia
Madia exigua (Sm.) Gray
   small tarweed
Madia glomerata Hook.
   mountain tarweed
Madia gracilis (Sm.) Keck & J. Clausen ex Applegate
   grassy tarweed
Madia minima (Gray) Keck
   oppositeleaved tarweed
Malacothrix clevelandii Gray
   Cleveland's desertdandelion
Malacothrix coulteri Harvey & Gray
   snake's head
Malacothrix floccifera (DC.) Blake
   woolly desertdandelion
Malacothrix glabrata (Gray ex D.C. Eat.) Gray
   smooth desertdandelion
Malacothrix sonchoides (Nutt.) Torr. & Gray
   sowthistle desertdandelion
Malacothrix stebbinsii W.S. Davis & Raven
   Stebbins' desertdandelion
Malacothrix torreyi Gray
   Torrey's desertdandelion
Matricaria discoidea DC.
   disc mayweed
Matricaria matricarioides (Less.) Porter
= Matricaria discoidea
Matricaria perforata Merat
   scentless mayweed
Matricaria suaveolens (Pursh) Buch., non L.
= Matricaria discoidea
Microseris nutans (Hook.) Schultz-Bip.
   nodding microceris
Monoptilon bellidiforme Torr. & Gray ex Gray
   daisy desertstar
Monoptilon bellioides (Gray) Hall
   Mojave desertstar
Nothocalais troximoides (Gray) Greene
   weevil microseris
Onopordum acanthium L.
   Scotch cottonthistle
Oreostemma alpigenum (Torr. & Gray) Nesom
Palafoxia arida B.L. Turner & Morris
   desert palafox
Parthenium incanum Kunth
   mariola
Pectis papposa Harvey & Gray
   cinchweed fetidmarigold
Perezia wrightii Gray
= Acourtia wrightii
Pericome caudata Gray
   mountain leaftail
Perityle congesta (M.E. Jones) Shinners
   compact rockdaisy
Perityle emoryi Torr.
   Emory's rocklily
Perityle gracilis (M.E. Jones) Rydb.
   grassleaf rockdaisy
Perityle megalocephala (S. Wats.) J.F. Macbr.
   limestone rockdaisy
Perityle stansburii (Gray) J.F. Macbr.
   Stansbur's rockdaisy
Perityle tenella (M.E. Jones) J.F. Macbr.
   Springdale rockdaisy
Petradoria pumila (Nutt.) Greene
   grassy rockgoldenrod
Peucephyllum schottii Gray
   Schott's pygmycedar
Pleurocoronis pluriseta (Gray) King & H.E. Robins.
   bush arrowleaf
Pluchea odorata (L.) Cass.
   sweetscent
Pluchea sericea (Nutt.) Coville
   arrowweed
Porophyllum gracile Benth.
   slender poreleaf
Porophyllum pygmaeum Keil & J. Morefield
   dwarf poreleaf
Prenanthella exigua (Gray) Rydb.
   brightwhite
Psathyrotes annua (Nutt.) Gray
   annual psathyrotes
Psathyrotes pilifera Gray
   hairybeast turtleback
Psathyrotes ramosissima (Torr.) Gray
   velvet turtleback
Pseudognaphalium canescens (DC.) W.A. Weber
Pseudognaphalium stramineum (Kunth) W.A. Weber
Psilactis asteroides Gray
Psilocarphus brevissimus Nutt.
   short woollyheads
Psilostrophe cooperi (Gray) Greene
   whitestem paperflower
Pyrrocoma apargioides (Gray) Greene
   alpineflames
Pyrrocoma carthamoides Hook.
   largeflower goldenweed
Pyrrocoma hirta (Gray) Greene
   tacky goldenweed
Pyrrocoma lanceolata (Hook.) Greene
   lanceleaf goldenweed
Pyrrocoma racemosa (Nutt.) Torr. & Gray
   clustered goldenweed
Pyrrocoma uniflora (Hook.) Greene
   plantain goldenweed
Rafinesquia californica Nutt.
   California plumseed
Rafinesquia neomexicana Gray
   New Mexico plumseed
Raillardella argentea (Gray) Gray
   silky raillardella
Raillardella scaposa (Gray) Gray
   stem raillardella
Rigiopappus leptocladus Gray
   wireweed
Rudbeckia occidentalis Nutt.
   western coneflower
Senecio amplectens Gray
   showy alpine groundsel
Senecio canus Hook.
   woolly groundsel
Senecio crassulus Gray
   thickleaf groundsel
Senecio cymbalarioides Buek
   cleftleaf groundsel
Senecio dimorphophyllus Greene
   splitleaf groundsel
Senecio eurycephalus Torr. & Gray ex Gray
   widehead groundsel
Senecio flaccidus Less.
   threadleaf ragwort
Senecio fremontii Torr. & Gray
   Fremont's groundsel
Senecio hydrophiloides Rydb.
   tall groundwel
Senecio hydrophilus Nutt.
   water groundsel
Senecio integerrimus Nutt.
   lambstongue groundsel
Senecio mohavensis Gray
   Mojave ragwort
Senecio multilobatus Torr. & Gray ex Gray
   lobeleaf groundsel
Senecio pattersonensis Hoover
   Patterson's senecio
Senecio pauciflorus Pursh
   alpine groundsel
Senecio pseudaureus Rydb.
   falsegold groundsel
Senecio scorzonella Greene
   Sierran ragwort
Senecio serra Hook.
   butterweed groundsel
Senecio spartioides Torr. & Gray
   broom groundsel
Senecio sphaerocephalus Greene
   ballhead groundsel
Senecio streptanthifolius Greene
   cleftleaf groundsel
Senecio triangularis Hook.
   arrowleaf groundsel
Senecio tridenticulatus Rydb.
   threetooth ragwort
Senecio werneriifolius (Gray) Gray
   hoary groundsel
Silybum marianum (L.) Gaertn.
   blessed milkthistle
Solidago canadensis L.
   Canada goldenrod
Solidago gigantea Ait.
   giant goldenrod
Solidago missouriensis Nutt.
   Missouri goldenrod
Solidago multiradiata Ait.
   mountain goldenrod
Solidago simplex Kunth
   Mt. Albert goldenrod
Solidago spectabilis (D.C. Eat.) Gray
   Nevada goldenrod
Solidago velutina DC.
   threenerve goldenrod
Sonchus arvensis L.
   field sowthistle
Sonchus asper (L.) Hill
   spiny sowthistle
Sonchus oleraceus L.
   common sowthistle
Sphaeromeria argentea Nutt.
   silver chickensage
Sphaeromeria cana (D.C. Eat.) Heller
   rod tansy
Sphaeromeria compacta (Hall) Holmgren, Shultz & Lowrey
   compact chickensage
Sphaeromeria diversifolia (D.C. Eat.) Rydb.
   separateleaf chickensage
Sphaeromeria potentilloides (Gray) Heller
   powerful tansy
Stenotus acaulis (Nutt.) Nutt.
   stemless mock goldenweed
Stenotus lanuginosus (Gray) Greene
   woolly mock goldenweed
Stenotus stenophyllus (Gray) Greene
   narrowleaf goldenweed
Stephanomeria exigua Nutt.
   small wirelettuce
Stephanomeria lactucina Gray
   lettuce wirelettuce
Stephanomeria parryi Gray
   Parry's wirelettuce
Stephanomeria pauciflora (Torr.) A. Nels.
   brownplume wirelettuce
Stephanomeria spinosa (Nutt.) S. Tomb
   thorn skeletonweed
Stephanomeria tenuifolia (Raf.) Hall
   narrowleaf wirelettuce
Stephanomeria virgata Benth.
   rod wirelettuce
Stylocline micropoides Gray
   woollyhead neststraw
Stylocline psilocarphoides M.E. Peck
   baretwig stylocline
Syntrichopappus fremontii Gray
   yellowray Fremontsgold
Tanacetum balsamita L.
= Balsamita major
Tanacetum parthenium (L.) Schultz-Bip.
   feverfew
Tanacetum vulgare L.
   common tansy
Taraxacum lyratum (Ledeb.) DC.
   harp dandelion
Taraxacum officinale G.H. Weber ex Wiggers
   common dandelion
Taraxacum officinale ssp. ceratophorum (Ledeb.) Schinz ex Thellung
   fleshy dandelion
Taraxacum officinale ssp. officinale G.H. Weber ex Wiggers
   wandering dandelion
Tessaria sericea (Nutt.) Shinners
= Pluchea sericea
Tetradymia argyraea Munz & Roos
   striped cottonthorn
Tetradymia axillaris A. Nels.
   longspine horsebrush
Tetradymia canescens DC.
   spineless horsebrush
Tetradymia glabrata Torr. & Gray
   littleleaf horsebrush
Tetradymia nuttallii Torr. & Gray
   Nuttall's horsebrush
Tetradymia spinosa Hook. & Arn.
   shortspine horsebrush
Tetradymia stenolepis Greene
   Mojave cottonthorn
Tetradymia tetrameres (Blake) Strother
   fourpart horsebrush
Tetraneuris acaulis (Pursh) Greene
   stemless hymenoxys
Thelesperma subnudum Gray
   sand fringedpod
Thymophylla acerosa (DC.) Strother
   pricklyleaf dogweed
Thymophylla pentachaeta (DC.) Small
   fiveneedle pricklyleaf
Tonestus alpinus (L.C. Anders. & Goodrich) Nesom & Morgan
   alpine serpentweed
Tonestus eximius (Hall) A. Nels. & J.F. Macbr.
   Lake Tahoe serpentweed
Tonestus graniticus (Tiehm & L. Shultz) Nesom & Morgan
   granite serpentweed
Tonestus lyallii (Gray) A. Nels.
   Lyall's goldenweed
Townsendia exscapa (Richards.) Porter
   stemless townsendia
Townsendia florifer (Hook.) Gray
   showy townsendia
Townsendia incana Nutt.
   hoary townsendia
Townsendia jonesii (Beaman) Reveal
   Jones' townsend daisy
Townsendia leptotes (Gray) Osterhout
   common townsendia
Townsendia parryi D.C. Eat.
   Parry's townsend daisy
Townsendia scapigera D.C. Eat.
   tufted townsend daisy
Townsendia strigosa Nutt.
   hairy townsendia
Tragopogon dubius Scop.
   yellow salsify
Tragopogon porrifolius L.
   salsify
Tragopogon pratensis L.
   meadow salsify
Trichoptilium incisum (Gray) Gray
   yellowdome
Uropappus linearifolius Nutt.
Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray
   golden crownbeard
Viguiera parishii Greene
   Parish's goldeneye
Viguiera reticulata S. Wats.
   netvein goldeneye
Wyethia amplexicaulis (Nutt.) Nutt.
   mulesears wyethia
Wyethia helianthoides Nutt.
   sunflower wyethia
Wyethia mollis Gray
   woolly wyethia
Xanthium spinosum L.
   spiny cockleburr
Xanthium strumarium L.
   rough cockleburr
Xylorhiza tortifolia (Torr. & Gray) Greene
   Mojave aster

CONVOLVULACEAE
Calystegia longipes (S. Wats.) Brummitt
   Paiute false bindweed
Calystegia sepium (L.) R. Br.
   hedge false bindweed
Convolvulus arvensis L.
   field bindweed
Cressa truxillensis Kunth
   spreading alkaliweed
Cuscuta approximata Bab.
   alfalfa dodder
Cuscuta californica Hook. & Arn.
   chaparral dodder
Cuscuta cephalanthi Engelm.
   buttonbush dodder
Cuscuta denticulata Engelm.
   desert dodder
Cuscuta epithymum L.
   clover dodder
Cuscuta indecora Choisy
   bigseed alfalfa dodder
Cuscuta pentagona Engelm.
   fiveangled dodder
Cuscuta salina Engelm.
   saltmarsh dodder
Ipomoea purpurea (L.) Roth
   tall morningglory

CORNACEAE
Cornus sericea L.
   redosier dogwood
Cornus sericea ssp. occidentalis (Torr. & Gray) Fosberg
   western dogwood
Cornus sericea ssp. sericea L.
   redosier dogwood
Cornus stolonifera Michx.
= Cornus sericea ssp. sericea

CRASSULACEAE
Crassula saginoides (Maxim.) Bywater & Wickens
   wrinkleseed pygmyweed
Crassula solierii (Gray) Meigen
   smoothseed pygmyweed
Dudleya pulverulenta (Nutt.) Britt. & Rose
   chalk liveforever
Sedum debile S. Wats.
   orpine stonecrop
Sedum integrifolium (Raf.) A. Nels.
   ledge stonecrop
Sedum lanceolatum Torr.
   spearleaf stonecrop
Tillaea bolanderi (S. Wats.) Greene
= Crassula saginoides
Tillaea solierii Gray
= Crassula solierii

CROSSOSOMATACEAE
Crossosoma bigelovii S. Wats.
   ragged rockflower
Glossopetalon clokeyi (Ensign) St. John
   Clokey's greasebush
Glossopetalon pungens Brandeg.
   dwarf greasebush
Glossopetalon spinescens Gray
   spiny greasebush

CRUCIFERAE
Alyssum alyssoides (L.) L.
   pale madwort
Alyssum desertorum Stapf
   desert madwort
Alyssum minus (L.) Rothm.
Anelsonia eurycarpa (Gray) J.F. Macbr. & Payson
   daggerpod
Arabis X divaricarpa A. Nels. (pro sp.)
   spreadingpod rockcress
Arabis beckwithii S. Wats.
   Beckwith's rockcress
Arabis bodiensis Rollins
   Bodie Hills rockcress
Arabis cobrensis M.E. Jones
   sagebrush rockcress
Arabis cusickii S. Wats.
   Cusick's rockcress
Arabis davidsonii Greene
   Davidson's rockcress
Arabis dispar M.E. Jones
   pinyon rockcress
Arabis drummondii Gray
   Drummond's rockcress
Arabis falcatoria Rollins
   Grouse Creek rockcress
Arabis falcifructa Rollins
   Elko rockcress
Arabis fendleri (S. Wats.) Greene
   Fendler's rockcress
Arabis fernaldiana Rollins
   park rockcress
Arabis glabra (L.) Bernh.
   tower rockcress
Arabis glaucovalvula M.E. Jones
   bluepod rockcress
Arabis gracilipes Greene
   Flagstaff rockcress
Arabis hirsuta (L.) Scop.
   hairy rockcress
Arabis holboellii Hornem.
   Holboell's rockcress
Arabis inyoensis Rollins
   Inyo rockcress
Arabis lemmonii S. Wats.
   Lemmon's rockcress
Arabis lignifera A. Nels.
   desert rockcress
Arabis lyallii S. Wats.
   Lyall's rockcress
Arabis microphylla Nutt.
   littleleaf rockcress
Arabis nuttallii B.L. Robins.
   Nuttall's rockcress
Arabis ophira Rollins
   Ophir Pass rockcress
Arabis pendulina Greene
   rabbitear rockcress
Arabis perennans S. Wats.
   perennial rockcress
Arabis pinzliae Rollins
   Boundary Peak rockcress
Arabis platysperma Gray
   pioneer rockcress
Arabis puberula Nutt.
   silver rockcress
Arabis pulchra M.E. Jones ex S. Wats.
   beauty rockcress
Arabis rectissima Greene
   bristlyleaf rockcress
Arabis repanda S. Wats.
   Yosemite rockcress
Arabis rigidissima Rollins
   Trinity Mountain rockcress
Arabis schistacea Rollins
   divided rockcress
Arabis selbyi Rydb.
   Selby's rockcress
Arabis shockleyi Munz
   Shockley's rockcress
Arabis sparsiflora Nutt.
   sicklepod rockcress
Arabis subpinnatifida S. Wats.
   Klamath rockcress
Arabis suffrutescens S. Wats.
   woody rockcress
Arabis tiehmii Rollins
   Carson Range rockcress
Armoracia rusticana P.G. Gaertn., B. Mey. & Scherb.
   horseradish
Athysanus Greene
   sandweed
Athysanus pusillus (Hook.) Greene
   common sandweed
Barbarea orthoceras Ledeb.
   American yellowrocket
Berteroa incana (L.) DC.
   hoary false madwort
Brassica arvensis (L.) Rabenh.
= Sinapis arvensis
Brassica elongata Ehrh.
   elongated mustard
Brassica juncea (L.) Czern.
   India mustard
Brassica napus L.
   rape
Brassica nigra (L.) W.D.J. Koch
   black mustard
Brassica rapa L.
   rape mustard
Brassica rapa var. rapa L.
   birdrape
Brassica tournefortii Gouan
   Asian mustard
Camelina microcarpa DC.
   littlepod falseflax
Capsella bursa-pastoris (L.) Medik.
   shepherd's purse
Cardamine breweri S. Wats.
   Brewer's bittercress
Cardamine cordifolia Gray
   heartleaf bittercress
Cardamine oligosperma Nutt.
   Idaho bittercress
Cardamine pensylvanica Muhl. ex Willd.
   Pennsylvania bittercress
Cardaria chalapensis (L.) Hand.-Maz.
Cardaria draba (L.) Desv.
   pepperweed whitetop
Cardaria draba ssp. draba (L.) Desv.
   heartpod hoarycress
Caulanthus barnebyi Rollins & P. Holmgren
   Black Rock wild cabbage
Caulanthus cooperi (S. Wats.) Payson
   Cooper's wild cabbage
Caulanthus crassicaulis (Torr.) S. Wats.
   thickstem wild cabbage
Caulanthus glaucus S. Wats.
   glaucous wild cabbage
Caulanthus inflatus S. Wats.
   desert candle
Caulanthus major (M.E. Jones) Payson
   slender wild cabbage
Caulanthus pilosus S. Wats.
   hairy wild cabbage
Chorispora tenella (Pallas) DC.
   crossflower
Conringia orientalis (L.) Dumort.
   hare's ear mustard
Cusickiella douglasii (Gray) Rollins
   alkali false whitlowgrass
Cusickiella quadricostata (Rollins) Rollins
   Bodie Hills false whitlowgrass
Descurainia californica (Gray) O.E. Schulz
   Sierran tansymustard
Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn
   mountain tansymustard
Descurainia obtusa (Greene) O.E. Schulz
   blunt tansymustard
Descurainia paradisa (A. Nels. & Kennedy) O.E. Schulz
   paradise tansymustard
Descurainia pinnata (Walt.) Britt.
   western tansymustard
Descurainia sophia (L.) Webb ex Prantl
   herb sophia
Dimorphocarpa wislizeni (Engelm.) Rollins
   touristplant
Dithyrea californica Harvey
   California shieldpod
Draba albertina Greene
   slender whitlowgrass
Draba arida C.L. Hitchc.
   desert whitlowgrass
Draba asterophora Payson
   Lake Tahoe whitlowgrass
Draba brachystylis Rydb.
   shortstyle whitlowgrass
Draba breweri S. Wats.
   cushion whitlowgrass
Draba crassifolia Graham
   snowbed whitlowgrass
Draba cuneifolia Nutt. ex Torr. & Gray
   wedgeleaf whitlowgrass
Draba cusickii B.L. Robins. ex O.E. Schulz
   Cusick's whitlowgrass
Draba densifolia Nutt.
   denseleaf whitlowgrass
Draba jaegeri Munz & Johnston
   Jaeger's whitlowgrass
Draba lemmonii S. Wats.
   granite whitlowgrass
Draba lonchocarpa Rydb.
   lancepod whitlowgrass
Draba nemorosa L.
   woodland whitlowgrass
Draba oligosperma Hook.
   fewseed whitlowgrass
Draba oreibata J.F. Macbr. & Payson ex Payson
   limestone whitlowgrass
Draba paucifructa Clokey & C.L. Hitchc.
   Charleston Mountain whitlowgrass
Draba paysonii J.F. Macbr.
   Payson's whitlowgrass
Draba pennellii Rollins
   Schell Creek whitlowgrass
Draba praealta Greene
   tall whitlowgrass
Draba reptans (Lam.) Fern.
   Carolina whitlowgrass
Draba sphaeroides Payson
   ball whitlowgrass
Draba ventosa Gray
   Wind River whitlowgrass
Draba verna L.
   spring whitlowgrass
Eruca P. Mill.
   rocketsalad
Eruca vesicaria (L.) Cav.
   rocketsalad
Erysimum arenicola S. Wats.
   cascade wallflower
Erysimum capitatum (Dougl. ex Hook.) Greene
   sanddune wallflower
Erysimum inconspicuum (S. Wats.) MacM.
   shy wallflower
Erysimum occidentale (S. Wats.) B.L. Robins.
   pale wallflower
Erysimum officinale L.
= Sisymbrium officinale
Erysimum repandum L.
   spreading wallflower
Guillenia lasiophylla (Hook. & Arn.) Greene
Halimolobos diffusa (Gray) O.E. Schulz
   spreading fissurewort
Halimolobos jaegeri (Munz) Rollins
Halimolobos virgata (Nutt.) O.E. Schulz
   rod halimolobos
Hesperis matronalis L.
   dames rocket
Hirschfeldia incana (L.) Lagreze-Fossat
   shortpod mustard
Hutchinsia procumbens (L.) Desv.
   prostrate hutchinsia
Idahoa scapigera (Hook.) A. Nels. & J.F. Macbr.
   oldstem idahoa
Isatis tinctoria L.
   Dyer's woad
Lepidium bourgeauanum Thellung
   Bourgeau's pepperweed
Lepidium campestre (L.) Ait. f.
   field pepperweed
Lepidium densiflorum Schrad.
   common pepperweed
Lepidium dictyotum Gray
   net pepperweed
Lepidium flavum Torr.
   yellow pepperweed
Lepidium fremontii S. Wats.
   desert pepperweed
Lepidium lasiocarpum Nutt.
   shaggyfruit pepperweed
Lepidium latifolium L.
   broadleaved pepperweed
Lepidium montanum Nutt.
   mountain pepperweed
Lepidium nanum S. Wats.
   dwarf pepperweed
Lepidium nitidum Nutt.
   shining pepperweed
Lepidium perfoliatum L.
   clasping pepperweed
Lepidium virginicum L.
   Virginia pepperweed
Lesquerella alpina (Nutt.) S. Wats.
   alpine bladderpod
Lesquerella cordiformis (Rollins) Rollins & Shaw
   Wassuk Range bladderpod
Lesquerella hitchcockii Munz
   Hitchcock's bladderpod
Lesquerella kingii S. Wats.
   King bladderpod
Lesquerella ludoviciana (Nutt.) S. Wats.
   foothill bladderpod
Lesquerella occidentalis S. Wats.
   western bladderpod
Lesquerella tenella A. Nels.
   Moapa bladderpod
Lobularia maritima (L.) Desv.
   seaside lobularia
Malcolmia africana (L.) Ait. f.
   African mustard
Phoenicaulis cheiranthoides Nutt.
   wallflower phoenicaulis
Physaria acutifolia Rydb.
   sharpleaf twinpod
Physaria chambersii Rollins
   Chambers' twinpod
Physaria newberryi Gray
   Newberry's twinpod
Polyctenium fremontii (S. Wats.) Greene
   Fremont's polyctenium
Polyctenium williamsiae Rollins
   Washoe combleaf
Raphanus raphanistrum L.
   wild radish
Raphanus sativus L.
   wild radish
Rapistrum rugosum (L.) All.
   annual bastardcabbage
Rorippa curvipes Greene
   bluntleaf yellowcress
Rorippa curvisiliqua (Hook.) Bess. ex Britt.
   curvepod yellowcress
Rorippa nasturtium-aquaticum (L.) Hayek
   watercress
Rorippa palustris (L.) Bess.
   bog yellowcress
Rorippa sinuata (Nutt.) A.S. Hitchc.
   spreading yellowcress
Rorippa sphaerocarpa (Gray) Britt.
   roundfruit yellowcress
Rorippa subumbellata Rollins
   Lake Tahoe yellowcress
Rorippa tenerrima Greene
   Modoc yellowcress
Schoenocrambe linifolia (Nutt.) Greene
   flaxleaf plainsmustard
Sibara deserti (M.E. Jones) Rollins
   desert winged rockcress
Sinapis arvensis L.
   charlock mustard
Sinapis nigra L.
= Brassica nigra
Sisymbrium altissimum L.
   tall tumblemustard
Sisymbrium irio L.
   Londonrocket
Sisymbrium loeselii L.
   small tumbleweed mustard
Sisymbrium officinale (L.) Scop.
   hedgemustard
Sisymbrium orientale L.
   Indian hedgemustard
Smelowskia calycina (Steph. ex Willd.) C.A. Mey.
   alpine smelowskia
Smelowskia holmgrenii Rollins
   Nye County false candytuft
Stanleya elata M.E. Jones
   Panamint princesplume
Stanleya pinnata (Pursh) Britt.
   desert princesplume
Stanleya viridiflora Nutt.
   green princesplume
Streptanthella longirostris (S. Wats.) Rydb.
   longbeak streptanthella
Streptanthus cordatus Nutt.
   heartleaf twistflower
Streptanthus diversifolius S. Wats.
   variableleaf jewelflower
Streptanthus oliganthus Rollins
   Masonic Mountain jewelflower
Streptanthus tortuosus Kellogg
   shieldplant
Stroganowia tiehmii Rollins
   Talapoosa Peak pearpod
Subularia aquatica L.
   waterawlwort
Subularia aquatica var. americana (Mulligan & Calder) Boivin
   American waterawlwort
Thelypodiopsis vermicularis (Welsh & Reveal) Rollins
   Great Basin tumblemustard
Thelypodium crispum Greene ex Payson
   crisped thelypody
Thelypodium flexuosum B.L. Robins.
   nodding thelypody
Thelypodium integrifolium (Nutt.) Endl. ex Walp.
   entireleaved thelypody
Thelypodium laciniatum (Hook.) Endl. ex Walp.
   cutleaf thelypody
Thelypodium laxiflorum Al-Shehbaz
   droopflower thelypody
Thelypodium milleflorum A. Nels.
   manyflower thelypody
Thelypodium sagittatum (Nutt. ex Torr. & Gray) Endl. ex Walp.
   arrow thelypody
Thelypodium wrightii Gray
   Wright's thelypody
Thlaspi arvense L.
   field pennycress
Thlaspi montanum L.
   alpine pennycress
Thysanocarpus curvipes Hook.
   sand fringepod
Thysanocarpus laciniatus Nutt.
   Santa Cruz Island fringepod

CUCURBITACEAE
Citrullus lanatus (Thunb.) Matsumura & Nakai
   watermelon
Citrullus lanatus var. citroides (Bailey) Mansf.
   watermelon
Cucumis melo L.
   cantaloupe
Cucurbita foetidissima Kunth
   Missouri gourd
Cucurbita palmata S. Wats.
   coyote gourd
Cucurbita pepo L.
   field pumpkin
Marah fabaceus (Naud.) Naud. ex Greene
   California manroot
Marah fabaceus var. agrestis (Greene) Stocking
   California manroot

CUPRESSACEAE
Calocedrus decurrens (Torr.) Florin
   incense cedar
Cupressus arizonica Greene
   Arizona cypress
Cupressus glabra Sudworth
   Arizona smooth cypress
Juniperus californica Carr.
   California juniper
Juniperus communis L.
   common juniper
Juniperus monosperma (Engelm.) Sarg.
   oneseed juniper
Juniperus occidentalis Hook.
   western juniper
Juniperus osteosperma (Torr.) Little
   Utah juniper
Juniperus scopulorum Sarg.
   Rocky Mountain juniper

DATISCACEAE
Datisca glomerata (K. Presl) Baill.
   Durango root

DENNSTAEDTIACEAE
Pteridium Gleditsch ex Scop.
   brackenfern
Pteridium aquilinum (L.) Kuhn
   western brackenfern
Pteridium aquilinum var. pubescens Underwood
   hairy brackenfern

DIPSACACEAE
Dipsacus fullonum L.
   Fuller's teasel

DRYOPTERIDACEAE
Athyrium americanum (Butters) Maxon
   alpine ladyfern
Athyrium filix-femina (L.) Roth
   common ladyfern
Athyrium filix-femina ssp. cyclosorum (Rupr.) C. Christens.
   subarctic ladyfern
Cystopteris fragilis (L.) Bernh.
   brittle bladderfern
Dryopteris filix-mas (L.) Schott
   ale fern
Polystichum lonchitis (L.) Roth
   northern hollyfern
Polystichum scopulinum (D.C. Eat.) Maxon
   mountain hollyfern
Woodsia oregana D.C. Eat.
   Oregon woodsia
Woodsia oregana ssp. oregana D.C. Eat.
   Oregon cliff fern
Woodsia scopulina D.C. Eat.
   Rocky Mountain woodsia

ELAEAGNACEAE
Elaeagnus angustifolia L.
   Russian olive
Shepherdia argentea (Pursh) Nutt.
   silver buffaloberry
Shepherdia canadensis (L.) Nutt.
   russet buffaloberry

ELATINACEAE
Bergia texana (Hook.) Seub. ex Walp.
   Texas bergia
Elatine brachysperma Gray
   shortseed waterwort
Elatine californica Gray
   California waterwort
Elatine triandra Schkuhr
   threestamen waterwort

EPHEDRACEAE
Ephedra aspera Engelm. ex S. Wats.
Ephedra californica S. Wats.
   California jointfir
Ephedra cutleri Peebles
Ephedra fasciculata A. Nels.
   Arizona jointfir
Ephedra funerea Coville & Morton
Ephedra nevadensis S. Wats.
Ephedra torreyana S. Wats.
   Torrey's jointfir
Ephedra viridis Coville
   mormon tea
Ephedra viridis var. viridis Coville
   mormon tea

EQUISETACEAE
Equisetum X ferrissii Clute (pro sp.)
   Ferriss' horsetail
Equisetum arvense L.
   field horsetail
Equisetum hyemale L.
   scouringrush horsetail
Equisetum laevigatum A. Braun
   smooth horsetail

ERICACEAE
Arctostaphylos nevadensis Gray
   pinemat manzanita
Arctostaphylos patula Greene
   greenleaf manzanita
Arctostaphylos pringlei Parry
   Pringle manzanita
Arctostaphylos pungens Kunth
   pointleaf manzanita
Arctostaphylos uva-ursi (L.) Spreng.
   kinnikinnick
Chimaphila menziesii (R. Br. ex D. Don) Spreng.
   little prince's pine
Chimaphila umbellata (L.) W. Bart.
   pipsissewa
Chimaphila umbellata ssp. occidentalis (Rydb.) Hulten
   pipsissewa
Kalmia microphylla (Hook.) Heller
   alpine laurel
Kalmia polifolia var. microphylla (Hook.) Hall
= Kalmia microphylla
Ledum glandulosum Nutt.
   Western Labradortea
Orthilia secunda (L.) House
   sidebells wintergreen
Phyllodoce breweri (Gray) Heller
   purple mountainheath
Pyrola asarifolia Michx.
   liverleaf wintergreen
Pyrola asarifolia ssp. asarifolia Michx.
   liverleaf wintergreen
Pyrola chlorantha Sw.
   greenflowered wintergreen
Pyrola minor L.
   snowline wintergreen
Pyrola picta Sm.
   whiteveined wintergreen
Vaccinium cespitosum Michx.
   dwarf blueberry
Vaccinium cespitosum var. cespitosum Michx.
   tall bilberry
Vaccinium myrtillus L.
   whortleberry
Vaccinium uliginosum L.
   bog blueberry

EUPHORBIACEAE
Argythamnia adenophora Gray
   glandular silverbush
Argythamnia cyanophylla (Woot. & Standl.) Ingram
   Charleston Mountain silverbush
Argythamnia neomexicana Muell.-Arg.
   New Mexico silverbush
Bernardia myricifolia (Scheele) S. Wats.
   mouse's eye
Chamaesyce abramsiana (L.C. Wheeler) Koutnik
   Abrams' sandmat
Chamaesyce albomarginata (Torr. & Gray) Small
   whitemargin sandmat
Chamaesyce chaetocalyx (Boiss.) Woot. & Standl.
Chamaesyce fendleri (Torr. & Gray) Small
   Fendler's sandmat
Chamaesyce glyptosperma (Engelm.) Small
   ribseed sandmat
Chamaesyce maculata (L.) Small
   spotted sandmat
Chamaesyce micromera (Boiss.) Woot. & Standl.
   Sonoran sandmat
Chamaesyce ocellata (Dur. & Hilg.) Millsp.
   Contura Creek sandmat
Chamaesyce parishii (Greene) Millsp. ex Parish
   Parish's sandmat
Chamaesyce parryi (Engelm.) Rydb.
   Parry's sandmat
Chamaesyce polycarpa (Benth.) Millsp. ex Parish
   smallseed sandmat
Chamaesyce revoluta (Engelm.) Small
   threadstem sandmat
Chamaesyce serpyllifolia (Pers.) Small
   thymeleaf sandmat
Chamaesyce setiloba (Engelm. ex Torr.) Millsp. ex Parish
   Yuma sandmat
Croton californicus Muell.-Arg.
   California croton
Croton californicus var. mohavensis Ferguson
   Mojave croton
Croton setigerus Hook.
   croton
Eremocarpus setigerus (Hook.) Benth.
= Croton setigerus
Euphorbia albomarginata Torr. & Gray
= Chamaesyce albomarginata
Euphorbia crenulata Engelm.
   Chinese caps
Euphorbia esula L.
   wolf's milk
Euphorbia fendleri Torr. & Gray
= Chamaesyce fendleri
Euphorbia incisa Engelm.
   Mojave spurge
Euphorbia maculata L.
= Chamaesyce maculata
Euphorbia neomexicana Greene
= Chamaesyce serpyllifolia ssp. serpyllifolia
Euphorbia palmeri Engelm.
   woodland spurge
Euphorbia parryi Engelm.
= Chamaesyce parryi
Euphorbia robusta (Engelm.) Small
   Rocky Mountain spurge
Euphorbia serpyllifolia Pers.
= Chamaesyce serpyllifolia ssp. serpyllifolia
Stillingia linearifolia S. Wats.
   queensroot
Stillingia spinulosa Torr.
   annual toothleaf
Tetracoccus Engelm. ex Parry
   tetracoccus
Tetracoccus fasciculatus (S. Wats.) Croizat
   purplebush
Tetracoccus hallii Brandeg.
Tragia ramosa Torr.
   branched noseburn

FAGACEAE
Chrysolepis sempervirens (Kellogg) Hjelmqvist
Quercus X pauciloba Rydb. (pro sp.)
   wavyleaf oak
Quercus chrysolepis Liebm.
   canyon live oak
Quercus dunnii Kellogg
   Palmer oak
Quercus gambelii Nutt.
   Gambel's oak
Quercus turbinella Greene
   shrub live oak
Quercus vacciniifolia Kellogg
   huckleberry oak

FOUQUIERIACEAE
Fouquieria splendens Engelm.
   ocotillo

FUMARIACEAE
   Corydalis aurea Willd.
scrambledeggs
Dicentra uniflora Kellogg
   longhorn steershead

GARRYACEAE
Garrya flavescens S. Wats.
   ashy silktassel

GENTIANACEAE
Centaurium calycosum (Buckl.) Fern.
   Arizona centaury
Centaurium exaltatum (Griseb.) W. Wight ex Piper
   desert centaury
Centaurium muehlenbergii (Griseb.) W. Wight ex Piper
   Muhlenberg's centaury
Centaurium namophilum Reveal, Broome & Beatley
   springloving centaury
Frasera albicaulis Dougl. ex Griseb.
   whitestem elkweed
Frasera albomarginata S. Wats.
   desert elkweed
Frasera gypsicola (Barneby) D.M. Post
   Sunnyside elkweed
Frasera paniculata Torr.
   tufted elkweed
Frasera puberulenta A. Davids.
   Inyo elkweed
Frasera speciosa Dougl. ex Griseb.
   showy frasera
Gentiana affinis Griseb.
   pleated gentian
Gentiana calycosa Griseb.
   Rainier pleated gentian
Gentiana newberryi Gray
   alpine gentian
Gentiana prostrata Haenke
   pygmy gentian
Gentianella Moench
   dwarfgentian
Gentianella amarella (L.) Boerner
   autumn dwarfgentian
Gentianella tenella (Rottb.) Boerner
   Dane's dwarfgentian
Gentianella tortuosa (M.E. Jones) J. Gillett
   Cathedral Bluff dwarfgentian
Gentianopsis detonsa (Rottb.) Ma
   windmill fringedgentian
Gentianopsis holopetala (Gray) Iltis
   Sierran fringedgentian
Gentianopsis simplex (Gray) Iltis
   oneflower fringedgentian
Swertia perennis L.
   star gentian
Swertia radiata (Kellogg) Kuntze
= Frasera speciosa

GERANIACEAE
Erodium cicutarium (L.) L'Her. ex Ait.
   redstem stork's bill
Erodium texanum Gray
   Texas stork's bill
Geranium caespitosum James
   pineywoods geranium
Geranium carolinianum L.
   Carolina geranium
Geranium dissectum L.
   cutleaf geranium
Geranium richardsonii Fisch. & Trautv.
   Richardson's geranium
Geranium viscosissimum Fisch. & C.A. Mey. ex C.A. Mey.
   sticky geranium

GROSSULARIACEAE
Ribes aureum Pursh
   golden currant
Ribes cereum Dougl.
   wax currant
Ribes hudsonianum Richards.
   northern black currant
Ribes inerme Rydb.
   whitestem gooseberry
Ribes lacustre (Pers.) Poir.
   prickly currant
Ribes lasianthum Greene
   alpine gooseberry
Ribes montigenum McClatchie
   gooseberry currant
Ribes nevadense Kellogg
   Sierran currant
Ribes niveum Lindl.
   snow currant
Ribes oxyacanthoides L.
   Canadian gooseberry
Ribes roezlii Regel
   Sierran gooseberry
Ribes velutinum Greene
   desert gooseberry
Ribes viscosissimum Pursh
   sticky currant

HALORAGACEAE
Myriophyllum sibiricum Komarov
   shortspike watermilfoil

HIPPURIDACEAE
Hippuris vulgaris L.
   common marestail

HYDRANGEACEAE
Fendlerella utahensis (S. Wats.) Heller
   Utah fendlerbush
Jamesia americana Torr. & Gray
   cliffbush
Jamesia americana var. rosea J.A. Purpus ex Schneid.
   fivepetal cliffbush
Jamesia tetrapetala N.& P. Holmgren
   fourpetal cliffbush
Philadelphus argenteus Rydb.
   silver mockorange
Philadelphus microphyllus Gray
   littleleaf mockorange
Philadelphus occidentalis A. Nels.
   western mockorange

HYDROCHARITACEAE
Elodea bifoliata St. John
   twoleaf waterweed
Elodea canadensis Michx.
   Canadian waterweed
Vallisneria americana Michx.
   American eelgrass

HYDROPHYLLACEAE
Ellisia nyctelea (L.) L.
   Aunt Lucy
Emmenanthe penduliflora Benth.
   yellow whisperingbells
Eriodictyon angustifolium Nutt.
   narrowleaf yerbasanta
Eucrypta chrysanthemifolia (Benth.) Greene
   spotted hideseed
Eucrypta micrantha (Torr.) Heller
   dainty desert hideseed
Hesperochiron californicus (Benth.) S. Wats.
   California hesperochiron
Hesperochiron pumilus (Dougl. ex Griseb.) Porter
   dwarf hesperochiron
Hydrophyllum capitatum Dougl. ex Benth.
   ballhead waterleaf
Hydrophyllum occidentale (S. Wats.) Gray
   western waterleaf
Nama aretioides (Hook. & Arn.) Brand
   ground nama
Nama californicum (Gray) Bacon
   California fiddleleaf
Nama demissum Gray
   leafy nama
Nama densum J.G. Lemmon
   leafy nama
Nama depressum J.G. & S.A. Lemmon ex Gray
   depressed fiddleleaf
Nama hispidum Gray
   bristly nama
Nama lobbii Gray
   Lobb's fiddleleaf
Nama pusillum J.G. & S.A. Lemmon ex Gray
   eggleaf fiddleleaf
Nama rothrockii Gray
   Rothrock's fiddleleaf
Nemophila breviflora Gray
   basin nemophila
Nemophila menziesii Hook. & Arn.
   Menzies' baby blue eyes
Nemophila parviflora Dougl. ex Benth.
   smallflower nemophila
Nemophila pedunculata Dougl. ex Benth.
   littlefoot nemophila
Nemophila spatulata Coville
   Sierran baby blue eyes
Phacelia adenophora J.T. Howell
   glandular yellow scorpionweed
Phacelia affinis Gray
   limestone scorpionweed
Phacelia ambigua var. ambigua M.E. Jones
   purplestem scorpionweed
Phacelia anelsonii J.F. Macbr.
   Aven Nelson's scorpionweed
Phacelia austromontana J.T. Howell
   Southern Sierran scorpionweed
Phacelia bakeri (Brand) J.F. Macbr.
   Baker's scorpionweed
Phacelia barnebyana J.T. Howell
   Barneby's scorpionweed
Phacelia beatleyae Reveal & Constance
   Beatley's scorpionweed
Phacelia bicolor Torr. ex S. Wats.
   twocolor phacelia
Phacelia calthifolia Brand
   calthaleaf scorpionweed
Phacelia cicutaria Greene
   caterpillar scorpionweed
Phacelia coerulea Greene
   skyblue scorpionweed
Phacelia crenulata Torr. ex S. Wats.
   cleftleaf wildheliotrope
Phacelia cryptantha Greene
   hiddenflower scorpionweed
Phacelia curvipes Torr. ex S. Wats.
   Washoe scorpionweed
Phacelia distans Benth.
   distant phacelia
Phacelia fremontii Torr.
   Fremont's phacelia
Phacelia geraniifolia Brand
   geraniumleaf scorpionweed
Phacelia glaberrima (Torr. ex S. Wats.) J.T. Howell
   southwestern scorpionweed
Phacelia gymnoclada Torr. ex S. Wats.
   nakedstem scorpionweed
Phacelia hastata Dougl. ex Lehm.
   silverleaf phacelia
Phacelia heterophylla Pursh
   varileaf phacelia
Phacelia humilis Torr. & Gray
   low scorpionweed
Phacelia hydrophylloides Torr. ex Gray
   waterleaf phacelia
Phacelia incana Brand
   hoary phacelia
Phacelia inconspicua Greene
   hidden scorpionweed
Phacelia inundata J.T. Howell
   playa yellow scorpionweed
Phacelia ivesiana Torr.
   Ives' phacelia
Phacelia ivesiana var. ivesiana Torr.
   Ives' phacelia
Phacelia laxiflora J.T. Howell
   dozing scorpionweed
Phacelia lemmonii Gray
   Lemmon's scorpionweed
Phacelia linearis (Pursh) Holz.
   threadleaf phacelia
Phacelia lutea (Hook. & Arn.) J.T. Howell
   yellow phacelia
Phacelia minutissima Henderson
   small phacelia
Phacelia monoensis Halse
   Mono scorpionweed
Phacelia mustelina Coville
   weasel scorpionweed
Phacelia neglecta M.E. Jones
   alkali scorpionweed
Phacelia palmeri Torr. ex S. Wats.
   Palmer's scorpionweed
Phacelia parishii Gray
   Parish's scorpionweed
Phacelia pedicellata Gray
   pedicellate scorpionweed
Phacelia peirsoniana J.T. Howell
   handsome scorpionweed
Phacelia procera Gray
   mountain phacelia
Phacelia pulchella Gray
   beautiful scorpionweed
Phacelia ramosissima Dougl. ex Lehm.
   branching phacelia
Phacelia rattanii Gray
   Rattan's phacelia
Phacelia rotundifolia Torr. ex S. Wats.
   roundleaf scorpionweed
Phacelia salina (A. Nels.) J.T. Howell
   Bitter Creek scorpionweed
Phacelia saxicola Gray
   stonecrop scorpionweed
Phacelia scopulina (A. Nels.) J.T. Howell
   Debeque phacelia
Phacelia sericea (Graham) Gray
   silky phacelia
Phacelia tetramera J.T. Howell
   fourpart scorpionweed
Phacelia thermalis Greene
   heated phacelia
Phacelia vallis-mortae J. Voss
   Death Valley scorpionweed
Pholistoma auritum (Lindl.) Lilja
   blue fiestaflower
Pholistoma membranaceum (Benth.) Constance
   white fiestaflower
Tricardia watsonii Torr. ex S. Wats.
   threehearts

IRIDACEAE
Iris missouriensis Nutt.
   Rocky Mountain iris
Olsynium douglasii (A. Dietr.) Bickn.
   Douglas' olsynium
Olsynium douglasii var. inflatum (Suksdorf) Cholewa & D. Henderson
   inflated olsynium
Sisyrinchium demissum Greene
   dwarf blueeyed grass
Sisyrinchium halophilum Greene
   Nevada blueeyed grass
Sisyrinchium idahoense Bickn.
   Idaho blueeyed grass

ISOETACEAE
Isoetes bolanderi Engelm.
   Bolander's quillwort
Isoetes bolanderi var. pygmaea (Engelm.) Clute
   pygmy quillwort

KRAMERIACEAE
Krameria erecta Willd. ex J.A. Schultes
   littleleaf ratany
Krameria grayi Rose & Painter
   white ratany
Krameria parvifolia Benth.
= Krameria erecta

LABIATAE
Agastache cusickii (Greenm.) Heller
   Cusick's giant hyssop
Agastache urticifolia (Benth.) Kuntze
   nettleleaf giant hyssop
Dracocephalum parviflorum Nutt.
   American dragonhead
Hedeoma drummondii Benth.
   Drummond's falsepennyroyal
Hedeoma nana (Torr.) Briq.
   falsepennyroyal
Hedeoma nana ssp. californica W.S. Stewart
   California falsepennyroyal
Hedeoma nana ssp. nana (Torr.) Briq.
   falsepennyroyal
Hyptis emoryi Torr.
   desert lavender
Lamium amplexicaule L.
   henbit deadnettle
Leonurus cardiaca L.
   common motherwort
Lycopus asper Greene
   rough bugleweed
Marrubium vulgare L.
   horehound
Mentha X piperita L. (pro sp.)
   peppermint
Mentha arvensis L.
   wild mint
Mentha spicata L.
   spearmint
Moluccella laevis L.
   shellflower
Monardella lanceolata Gray
   mustang mountainbalm
Monardella linoides Gray
   narrowleaf monardella
Monardella odoratissima Benth.
   Pacific monardella
Monardella odoratissima ssp. odoratissima Benth.
   alpine mountainbalm
Monardella odoratissima ssp. pallida (Heller) Epling
   alpine mountainbalm
Nepeta cataria L.
   catnip
Prunella vulgaris L.
   common selfheal
Prunella vulgaris ssp. lanceolata (W. Bart.) Hulten
   lance selfheal
Salazaria mexicana Torr.
   Mexican bladdersage
Salvia columbariae Benth.
   chia
Salvia dorrii (Kellogg) Abrams
   grayball sage
Salvia funerea M.E. Jones
   woolly sage
Salvia mohavensis Greene
   Mojave sage
Salvia pachyphylla Epling ex Munz
   blue sage
Scutellaria angustifolia Pursh
   narrowleaf skullcap
Scutellaria epilobiifolia A. Hamilton
= Scutellaria galericulata
Scutellaria galericulata L.
   marsh skullcap
Scutellaria nana Gray
   dwarf skullcap
Scutellaria sapphirina (Barneby) Olmstead
   White Pine skullcap
Stachys albens Gray
   whitestem hedgenettle
Stachys palustris L.
   marsh hedgenettle
Teucrium canadense L.
   Canada germander
Trichostema austromontanum F.H. Lewis
   San Jacinto bluecurls

LEGUMINOSAE
Acacia greggii Gray
   catclaw acacia
Alhagi Gagnebin
   alhagi
Alhagi maurorum Medik.
   camelthorn
Astragalus ackermanii Barneby
   Ackerman's milkvetch
Astragalus acutirostris S. Wats.
   sharpkeel milkvetch
Astragalus aequalis Clokey
   Clokey's milkvetch
Astragalus agrestis Dougl. ex G. Don
   purple milkvetch
Astragalus alpinus L.
   alpine milkvetch
Astragalus alvordensis M.E. Jones
   Alvord milkvetch
Astragalus amphioxys Gray
   Crescent milkvetch
Astragalus andersonii Gray
   Anderson's milkvetch
Astragalus anserinus Atwood, Goodrich & Welsh
   Goose Creek milkvetch
Astragalus argophyllus Nutt.
   silverleaf milkvetch
Astragalus atratus S. Wats.
   mourning milkvetch
Astragalus austiniae Gray ex Brewer & S. Wats.
   Austin's milkvetch
Astragalus australis (L.) Lam.
   Indian milkvetch
Astragalus beatleyae Barneby
   Beatley's milkvetch
Astragalus beckwithii Torr. & Gray
   Beckwith's milkvetch
Astragalus bernardinus M.E. Jones
   San Bernardino milkvetch
Astragalus bisulcatus (Hook.) Gray
   twogrooved milkvetch
Astragalus bolanderi Gray
   Bolander's milkvetch
Astragalus callithrix Barneby
   Callaway milkvetch
Astragalus calycosus Torr. ex S. Wats.
   matted poison milkvetch
Astragalus canadensis L.
   Canadian milkvetch
Astragalus casei Gray ex Brewer & S. Wats.
   Case's milkvetch
Astragalus ceramicus Sheldon
   painted milkvetch
Astragalus chamaemeniscus Barneby
   ground-crescent milkvetch
Astragalus cibarius Sheldon
   silky milkvetch
Astragalus cicer L.
   cicer milkvetch
Astragalus cimae M.E. Jones
   cima milkvetch
Astragalus coccineus Brandeg.
   scarlet milkvetch
Astragalus convallarius Greene
   timber milkvetch
Astragalus curvicarpus (Heller) J.F. Macbr.
   curvepod milkvetch
Astragalus didymocarpus Hook. & Arn.
   dwarf white milkvetch
Astragalus diversifolius Gray
   meadow milkvetch
Astragalus ensiformis M.E. Jones
   pagumpa milkvetch
Astragalus eremiticus Sheldon
   hermit milkvetch
Astragalus eurylobus (Barneby) Barneby
   Needle Mountain milkvetch
Astragalus filipes Torr. ex Gray
   threadstalk milkvetch
Astragalus flavus Nutt.
   yellow milkvetch
Astragalus flexuosus (Hook.) Dougl. ex G. Don
   flexile milkvetch
Astragalus funereus M.E. Jones
   Funeral Mountain milkvetch
Astragalus geyeri Gray
   Geyer's milkvetch
Astragalus gibbsii Kellogg
   Gibbs' milkvetch
Astragalus gilmanii Tidestrom
   Gilman's milkvetch
Astragalus hornii Gray
   Horn's milkvetch
Astragalus humistratus Gray
   groundcover milkvetch
Astragalus inyoensis Sheldon
   Inyo milkvetch
Astragalus iodanthus S. Wats.
   Humboldt River milkvetch
Astragalus jejunus S. Wats.
   starveling milkvetch
Astragalus johannis-howellii Barneby
   Long Valley milkvetch
Astragalus kentrophyta Gray
   spiny milkvetch
Astragalus layneae Greene
   widow's milkvetch
Astragalus lemmonii Gray
   Lemmon's milkvetch
Astragalus lentiginosus Dougl. ex Hook.
   specklepod milkvetch
Astragalus lonchocarpus Torr.
   rushy milkvetch
Astragalus malacus Gray
   shaggy milkvetch
Astragalus megacarpus (Nutt.) Gray
   great bladdery milkvetch
Astragalus minthorniae (Rydb.) Jepson
   Minthorn's milkvetch
Astragalus miser Dougl.
   weedy milkvetch
Astragalus mohavensis S. Wats.
   Mojave milkvetch
Astragalus mokiacensis Gray
   Mokiak milkvetch
Astragalus mollissimus Torr.
   woolly milkvetch
Astragalus newberryi Gray
   Newberry's milkvetch
Astragalus nuttallianus DC.
   smallflowered milkvetch
Astragalus nyensis Barneby
   Nye milkvetch
Astragalus obscurus S. Wats.
   arcane milkvetch
Astragalus oophorus S. Wats.
   egg milkvetch
Astragalus phoenix Barneby
   Ash Meadows milkvetch
Astragalus pinonis M.E. Jones
   pinyon milkvetch
Astragalus piutensis Barneby & Mabberley
   Sevier milkvetch
Astragalus platytropis Gray
   broadkeel milkvetch
Astragalus porrectus S. Wats.
   Lahontan milkvetch
Astragalus praelongus Sheldon
   stinking milkvetch
Astragalus preussii Gray
   Preuss' milkvetch
Astragalus pseudiodanthus Barneby
   Tonopah milkvetch
Astragalus pterocarpus S. Wats.
   winged milkvetch
Astragalus pulsiferae Gray
   Ames' milkvetch
Astragalus remotus (M.E. Jones) Barneby
   Spring Mountain milkvetch
Astragalus robbinsii (Oakes) Gray
   Robbins' milkvetch
Astragalus sabulonum Gray
   gravel milkvetch
Astragalus salmonis M.E. Jones
   Trout Creek milkvetch
Astragalus serenoi (Kuntze) Sheldon
   naked milkvetch
Astragalus solitarius M.E. Peck
   solitary milkvetch
Astragalus straturensis M.E. Jones
   Pine Valley milkvetch
Astragalus subcinereus Gray
   Silver's milkvetch
Astragalus tenellus Pursh
   looseflower milkvetch
Astragalus tephrodes Gray
   ashen milkvetch
Astragalus tetrapterus Gray
   fourwing milkvetch
Astragalus tidestromii (Rydb.) Clokey
   Tidestrom's milkvetch
Astragalus tiehmii Barneby
   Tiehm's milkvetch
Astragalus toanus M.E. Jones
   Toano milkvetch
Astragalus toquimanus Barneby
   Toquima milkvetch
Astragalus uncialis Barneby
   currant milkvetch
Astragalus utahensis (Torr.) Torr. & Gray
   Utah milkvetch
Astragalus whitneyi Gray
   balloon pod milkvetch
Astragalus yoder-williamsii Barneby
   Osgood Mountain milkvetch
Caesalpinia gilliesii (Hook.) Wallich ex D. Dietr.
   bird-of-paradise shrub
Cassia armata S. Wats.
= Senna armata
Cassia covesii Gray
= Senna covesii
Cercidium floridum Benth. ex Gray
= Parkinsonia florida
Cercis canadensis L.
   eastern redbud
Colutea arborescens L.
   bladder senna
Coronilla varia L.
   purple crownvetch
Dalea lanata Spreng.
   woolly prairieclover
Dalea ornata (Dougl. ex Hook.) Eat. & J. Wright
   Blue Mountain prairieclover
Dalea searlsiae (Gray) Barneby
   Searls' prairieclover
Dalea spinosa Gray
= Psorothamnus spinosus
Desmanthus illinoensis (Michx.) MacM. ex B.L. Robins. & Fern.
   prairie bundleflower
Gleditsia triacanthos L.
   honeylocust
Glycyrrhiza glabra L.
   cultivated licorice
Glycyrrhiza lepidota Pursh
   American licorice
Hedysarum boreale Nutt.
   northern sweetvetch
Hoffmannseggia glauca (Ortega) Eifert
   Indian rushpea
Lathyrus brachycalyx Rydb.
   Bonneville peavine
Lathyrus grimesii Barneby
   Grimes' peavine
Lathyrus hitchcockianus Barneby & Reveal
   Bullfrog Mountain peavine
Lathyrus laetivirens Greene ex Rydb.
   aspen peavine
Lathyrus lanszwertii Kellogg
   thickleaf peavine
Lathyrus latifolius L.
   perennial peavine
Lathyrus rigidus White
   stiff peavine
Lotus argyraeus (Greene) Greene
   canyon birdsfoot trefoil
Lotus humistratus Greene
   foothill deervetch
Lotus nevadensis (S. Wats.) Greene
   Nevada birdsfoot trefoil
Lotus oblongifolius (Benth.) Greene
   streambank birdsfoot trefoil
Lotus plebeius (Brand) Barneby
   New Mexico birdsfoot trefoil
Lotus rigidus (Benth.) Greene
   shrubby deervetch
Lotus salsuginosus Greene
   coastal birdsfoot trefoil
Lotus strigosus (Nutt.) Greene
   Bishop lotus
Lotus tenuis Waldst. & Kit. ex Willd.
   narrowleaf birdsfoot trefoil
Lotus unifoliolatus (Hook.) Benth.
   American birdsfoot trefoil
Lotus utahensis Ottley
   Utah birdsfoot trefoil
Lupinus X alpestris A. Nels. (pro sp.)
   lupine
Lupinus andersonii S. Wats.
   Anderson's lupine
Lupinus arbustus Dougl. ex Lindl.
   longspur lupine
Lupinus argenteus Pursh
   silvery lupine
Lupinus aridus Dougl.
   desert lupine
Lupinus arizonicus (S. Wats.) S. Wats.
   Arizona lupine
Lupinus brevicaulis S. Wats.
   shortstem lupine
Lupinus breweri Gray
   Brewer's lupine
Lupinus burkei S. Wats.
   largeleaf lupine
Lupinus caespitosus Nutt.
   stemless dwarf lupine
Lupinus caudatus Kellogg
   tailcup lupine
Lupinus concinnus J.G. Agardh
   scarlet lupine
Lupinus confertus Kellogg
   crowded lupine
Lupinus excubitus M.E. Jones
   Inyo bush lupine
Lupinus flavoculatus Heller
   yelloweyes
Lupinus fulcratus Greene
   greenstipule lupine
Lupinus grayi (S. Wats.) S. Wats.
   Sierran lupine
Lupinus holmgrenianus C.P. Sm.
   Holmgren's lupine
Lupinus holosericeus Nutt.
   holo lupine
Lupinus kingii S. Wats.
   King's lupine
Lupinus latifolius Lindl. ex J.G. Agardh
   broadleaf lupine
Lupinus leucophyllus Dougl. ex Lindl.
   velvet lupine
Lupinus lyallii Gray
   dwarf mountain lupine
Lupinus malacophyllus Greene
   jawleaf lupine
Lupinus meionanthus Gray
   Lake Tahoe lupine
Lupinus nanus Dougl. ex Benth.
   sky lupine
Lupinus nevadensis Heller
   Nevada lupine
Lupinus obtusilobus Heller
   bluntlobe lupine
Lupinus odoratus Heller
   Mojave royal lupine
Lupinus palmeri S. Wats.
   bluebonnet lupine
Lupinus polyphyllus Lindl.
   bigleaf lupine
Lupinus prunophilus M.E. Jones
   hairy bigleaf lupine
Lupinus pusillus Pursh
   rusty lupine
Lupinus saxosus T.J. Howell
   rock lupine
Lupinus sellulus Kellogg
   Donner Lake lupine
Lupinus sericeus Pursh
   silky lupine
Lupinus shockleyi S. Wats.
   purple desert lupine
Lupinus sparsiflorus Benth.
   Mojave lupine
Lupinus uncialis S. Wats.
   inchhigh lupine
Lupinus vallicola Heller
   open lupine
Lupinus volutans Greene
   pinyon lupine
Marina parryi (Torr. & Gray) Barneby
   Parry's false prairieclover
Medicago lupulina L.
   black medick
Medicago polymorpha L.
   burclover
Medicago sativa L.
   alfalfa
Medicago sativa ssp. falcata (L.) Arcang.
   yellow alfalfa
Melilotus indicus (L.) All.
   annual yellow sweetclover
Melilotus officinalis (L.) Lam.
   yellow sweetclover
Onobrychis viciifolia Scop.
   sainfoin
Oxytropis deflexa (Pallas) DC.
   hangpod crazyweed
Oxytropis nana Nutt.
   Wyoming locoweed
Oxytropis oreophila Gray
   roundleaf crazyweed
Oxytropis parryi Gray
   Parry's crazyweed
Oxytropis sericea Nutt.
   silvery oxytrope
Parkinsonia aculeata L.
   Jerusalem thorn
Parkinsonia florida (Benth. ex Gray) S. Wats.
   blue paloverde
Pediomelum castoreum (S. Wats.) Rydb.
   beaver scurfpea
Pediomelum megalanthum (Woot. & Standl.) Rydb.
   Intermountain Indian breadroot
Peteria thompsoniae S. Wats.
   Thompson's peteria
Prosopis glandulosa Torr.
   honey mesquite
Prosopis glandulosa var. glandulosa Torr.
   honey mesquite
Prosopis pubescens Benth.
   screwbean mesquite
Psoralidium lanceolatum (Pursh) Rydb.
   lemon scurfpea
Psorothamnus arborescens (Torr. ex Gray) Barneby
   Mojave dalea
Psorothamnus fremontii (Torr. ex Gray) Barneby
   Fremont's dalea
Psorothamnus kingii (S. Wats.) Barneby
   King's smokebush
Psorothamnus polydenius (Torr. ex S. Wats.) Rydb.
   Nevada smokebush
Psorothamnus spinosus (Gray) Barneby
   smoketree
Robinia neomexicana Gray
   New Mexico locust
Robinia pseudoacacia L.
   black locust
Senna armata (S. Wats.) Irwin & Barneby
   desertsenna
Senna covesii (Gray) Irwin & Barneby
   Coves' cassia
Sphaerophysa salsula (Pallas) DC.
   alkali swainsonpea
Thermopsis gracilis T.J. Howell
   Mountain Pea
Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richards.
   prairie thermopsis
Thermopsis rhombifolia var. montana (Nutt.) Isely
   mountain thermopsis
Trifolium andersonii Gray
   fiveleaf clover
Trifolium andinum Nutt.
   Andes clover
Trifolium beckwithii Brewer ex S. Wats.
   Beckwith's clover
Trifolium cyathiferum Lindl.
   cup clover
Trifolium eriocephalum Nutt.
   woollyhead clover
Trifolium fragiferum L.
   strawberry clover
Trifolium gymnocarpon Nutt.
   hollyleaf clover
Trifolium hybridum L.
   alsike clover
Trifolium kingii S. Wats.
   King's clover
Trifolium leibergii A. Nels. & J.F. Macbr.
   Leiberg's clover
Trifolium lemmonii S. Wats.
   Lemmon's clover
Trifolium longipes Nutt.
   longstalk clover
Trifolium macrocephalum (Pursh) Poir.
   largehead clover
Trifolium microcephalum Pursh
   smallhead clover
Trifolium monanthum Gray
   mountain carpet clover
Trifolium pratense L.
   red clover
Trifolium productum Greene
   Shasta clover
Trifolium repens L.
   white clover
Trifolium rollinsii J. Gillett
   Rollins' clover
Trifolium variegatum Nutt.
   whitetip clover
Trifolium wormskioldii Lehm.
   cows clover
Vicia americana Muhl. ex Willd.
   American vetch
Vicia americana ssp. minor (Hook.) C.R. Gunn
   mat vetch
Vicia ludoviciana Nutt.
   Louisiana vetch
Vicia ludoviciana ssp. ludoviciana Nutt.
   slim vetch
Vicia sativa L.
   common vetch
Vicia villosa Roth
   winter vetch

LEMNACEAE
Lemna gibba L.
   swollen duckweed
Lemna minor L.
   common duckweed
Lemna minuta Kunth
   least duckweed
Lemna trisulca L.
   star duckweed
Lemna turionifera Landolt
   turion duckweed
Lemna valdiviana Phil.
   valdivia duckweed
Spirodela polyrrhiza (L.) Schleid.
   common duckweed

LENTIBULARIACEAE
Utricularia intermedia Hayne
   flatleaf bladderwort
Utricularia macrorhiza Le Conte
   common bladderwort
Utricularia minor L.
   lesser bladderwort

LILIACEAE
Allium acuminatum Hook.
   tapertip onion
Allium anceps Kellogg
   twinleaf onion
Allium atrorubens S. Wats.
   darkred onion
Allium atrorubens var. atrorubens S. Wats.
   darkred onion
Allium atrorubens var. cristatum (S. Wats.) McNeal
   wild onion
Allium bisceptrum S. Wats.
   twincrest onion
Allium bisceptrum var. bisceptrum S. Wats.
   twincrest onion
Allium bisceptrum var. palmeri (S. Wats.) Cronq.
   aspen onion
Allium brandegei S. Wats.
   Brandegee's onion
Allium campanulatum S. Wats.
   dusky onion
Allium geyeri S. Wats.
   Geyer's onion
Allium geyeri var. geyeri S. Wats.
   Geyer's onion
Allium lemmonii S. Wats.
   Lemmon's onion
Allium nevadense S. Wats.
   Nevada onion
Allium nevadense var. nevadense S. Wats.
   Nevada onion
Allium obtusum J.G. Lemmon
   red Sierran onion
Allium obtusum var. obtusum J.G. Lemmon
   red Sierran onion
Allium parvum Kellogg
   small onion
Allium platycaule S. Wats.
   broadstemmed onion
Allium punctum Henderson
   dotted onion
Allium schoenoprasum L.
   wild chives
Allium textile A. Nels. & J.F. Macbr.
   textile onion
Allium tolmiei (Hook.) Baker ex S. Wats.
   Tolm's onion
Allium tolmiei var. tolmiei (Hook.) Baker ex S. Wats.
   Tolm's onion
Allium validum S. Wats.
   Pacific onion
Androstephium breviflorum S. Wats.
   pink funnellily
Asparagus officinalis L.
   garden asparagus
Calochortus bruneaunis A. Nels. & J.F. Macbr.
   Bruneau Mariposa lily
Calochortus eurycarpus S. Wats.
   white Mariposa lily
Calochortus flexuosus S. Wats.
   winding Mariposa lily
Calochortus invenustus Greene
   plain Mariposa lily
Calochortus kennedyi Porter
   desert Mariposa lily
Calochortus leichtlinii Hook. f.
   smokey Mariposa
Calochortus macrocarpus Dougl.
   sagebrush Mariposa lily
Calochortus macrocarpus var. macrocarpus Dougl.
   sagebrush Mariposa lily
Calochortus nitidus Dougl.
   broadfruit Mariposa lily
Calochortus nuttallii Torr. & Gray
   sego lily
Calochortus panamintensis (Ownbey) Reveal
   Panamint Mountain Mariposa lily
Calochortus striatus Parish
   alkali Mariposa lily
Camassia leichtlinii (Baker) S. Wats.
   large camas
Camassia quamash (Pursh) Greene
   small camas
Camassia quamash ssp. breviflora Gould
   small camas
Dichelostemma Kunth
   snakelily
Dichelostemma capitatum (Benth.) Wood
   bluedicks
Fritillaria atropurpurea Nutt.
   spotted missionbells
Fritillaria pinetorum A. Davids.
   pinewoods missionbells
Fritillaria pudica (Pursh) Spreng.
   yellow missionbells
Fritillaria recurva Benth.
   scarlet missionbells
Hesperocallis undulata Gray
   desertlily
Leucocrinum montanum Nutt. ex Gray
   common starlily
Lilium kelleyanum J.G. Lemmon
   Kelley's lily
Lilium parvum Kellogg
   Sierran tiger lily
Lloydia serotina (L.) Reichenb.
   common alplily
Maianthemum racemosum (L.) Link
   feathery false Solomon's seal
Maianthemum racemosum ssp. amplexicaule (Nutt.) LaFrankie
   western Solomon's seal
Maianthemum stellatum (L.) Link
   starry false Solomon's seal
Muilla coronata Greene
   crowned muilla
Muilla transmontana Greene
   inland muilla
Smilacina racemosa var. amplexicaulis (Nutt.) S. Wats.
= Maianthemum racemosum ssp. amplexicaule
Smilacina racemosa var. brachystyla G. Henderson
= Maianthemum racemosum ssp. amplexicaule
Smilacina racemosa var. glabra (J.F. Macbr.) St. John
= Maianthemum racemosum ssp. amplexicaule
Smilacina racemosa var. jenkinsii (Boivin) Boivin
= Maianthemum racemosum ssp. amplexicaule
Smilacina stellata (L.) Desf.
= Maianthemum stellatum
Triteleia hyacinthina (Lindl.) Greene
   hyacinth brodiaea
Triteleia hyacinthina var. hyacinthina (Lindl.) Greene
   fool's onion
Veratrum californicum Dur.
   California false hellebore
Veratrum californicum var. californicum Dur.
   California false hellebore
Zigadenus elegans Pursh
   mountain deathcamas
Zigadenus exaltatus Eastw.
   giant deathcamas
Zigadenus paniculatus (Nutt.) S. Wats.
   foothill deathcamas
Zigadenus venenosus S. Wats.
   meadow deathcamas
Zigadenus venenosus var. venenosus S. Wats.
   meadow deathcamas

LIMNANTHACEAE
Floerkea proserpinacoides Willd.
   false mermaidweed

LINACEAE
Linum australe Heller
   southern flax
Linum australe var. australe Heller
   southern flax
Linum kingii S. Wats.
   King's flax
Linum lewisii Pursh
   prairie flax
Linum lewisii var. alpicola Jepson
   prairie flax
Linum lewisii var. lewisii Pursh
   Lewis' flax
Linum puberulum (Engelm.) Heller
   plains flax
Linum subteres (Trel.) Winkl.
   sprucemont flax

LOASACEAE
Eucnide urens (Parry ex Gray) Parry
   desert stingbush
Mentzelia affinis Greene
   yellowcomet
Mentzelia albicaulis (Dougl. ex Hook.) Dougl. ex Torr. & Gray
   whitestem blazingstar
Mentzelia candelaria H.J. Thompson & Prigge
   Candelaria blazingstar
Mentzelia congesta Nutt. ex Torr. & Gray
   united blazingstar
Mentzelia dispersa S. Wats.
   bushy blazingstar
Mentzelia gracilenta (Nutt.) Torr. & Gray
   grass blazingstar
Mentzelia involucrata S. Wats.
   whitebract blazingstar
Mentzelia jonesii (Urban & Gilg) H.J. Thompson & Roberts
   Jones' blazingstar
Mentzelia laevicaulis (Dougl. ex Hook.) Torr. & Gray
   smoothstem blazingstar
Mentzelia leucophylla Brandeg.
   Ash Meadows blazingstar
Mentzelia mollis M.E. Peck
   soft blazingstar
Mentzelia montana (A. Davids.) A. Davids.
   variegatedbract blazingstar
Mentzelia nitens Greene
   shining blazingstar
Mentzelia obscura H.J. Thompson & Roberts
   Pacific blazingstar
Mentzelia oreophila J. Darl.
   Argus blazingstar
Mentzelia packardiae Glad.
   Packard's blazingstar
Mentzelia polita A. Nels.
   polished blazingstar
Mentzelia pterosperma Eastw.
   wingseed blazingstar
Mentzelia pumila Nutt. ex Torr. & Gray
   dwarf mentzelia
Mentzelia reflexa Coville
   reflexed blazingstar
Mentzelia torreyi Gray
   Torrey's blazingstar
Mentzelia tricuspis Gray
   spinyhair blazingstar
Mentzelia veatchiana Kellogg
   whitestem blazingstar
Petalonyx nitidus S. Wats.
   shinyleaf sandpaper plant
Petalonyx parryi Gray
   Parry's sandpaper plant
Petalonyx thurberi Gray
   Thurber's sandpaper plant

LYTHRACEAE
Ammannia robusta Heer & Regel
   grand redstem
Lythrum californicum Torr. & Gray
   California loosestrife
Lythrum salicaria L.
   purple loosestrife

MALVACEAE
Abutilon parvulum Gray
   dwarf Indian mallow
Alcea rosea L.
   hollyhock
Althaea rosea (L.) Cav.
= Alcea rosea
Eremalche exilis (Gray) Greene
   white mallow
Eremalche rotundifolia (Gray) Greene
   desert fivespot
Hibiscus denudatus Benth.
   paleface
Iliamna rivularis (Dougl. ex Hook.) Greene
   streambank globemallow
Malva neglecta Wallr.
   common mallow
Malva parviflora L.
   cheeseweed mallow
Malva rotundifolia auct. non L.
= Malva neglecta
Malvella lepidota (Gray) Fryxell
   scurfymallow
Malvella leprosa (Ortega) Krapov.
   alkali mallow
Sidalcea candida Gray
   white checkermallow
Sidalcea glaucescens Greene
   waxy checkermallow
Sidalcea neomexicana Gray
   New Mexico checkermallow
Sidalcea oregana (Nutt. ex Torr. & Gray) Gray
   Oregon checkermallow
Sphaeralcea ambigua Gray
   desert globemallow
Sphaeralcea angustifolia (Cav.) G. Don
   copper globemallow
Sphaeralcea caespitosa M.E. Jones
   tufted globemallow
Sphaeralcea coccinea (Nutt.) Rydb.
   scarlet globemallow
Sphaeralcea emoryi Torr. ex Gray
   Emory's globemallow
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.
   gooseberryleaf globemallow
Sphaeralcea munroana (Dougl. ex Lindl.) Spach ex Gray
   Munro's globemallow
Sphaeralcea parvifolia A. Nels.
   smallflower globemallow

MARSILEACEAE
Marsilea oligospora Goodding
   Pacific waterclover
Marsilea vestita Hook. & Grev.
   hairy pepperwort

MENYANTHACEAE
Menyanthes trifoliata L.
   common buckbean

MOLLUGINACEAE
Mollugo cerviana (L.) Ser.
   threadstem carpetweed
Mollugo verticillata L.
   green carpetweed

MONOTROPACEAE
Allotropa virgata Torr. & Gray ex Gray
   sugarstick
Pterospora andromedea Nutt.
   woodland pinedrops
Sarcodes sanguinea Torr.
   snowplant

NAJADACEAE
Najas guadalupensis (Spreng.) Magnus
   southern waternymph
Najas marina L.
   spiny naiad

NYCTAGINACEAE
Abronia elliptica A. Nels.
   fragrant white sand verbena
Abronia nana S. Wats.
   dwarf sand verbena
Abronia nana var. covillei (Heimerl) Munz
   Coville's dwarf sand verbena
Abronia turbinata Torr. ex S. Wats.
   transmontane sand verbena
Abronia villosa S. Wats.
   desert sand verbena
Allionia incarnata L.
   trailing windmills
Anulocaulis leiosolenus (Torr.) Standl.
   southwestern ringstem
Boerhavia intermedia M.E. Jones
   fivewing spiderling
Boerhavia wrightii Gray
   largebract spiderling
Mirabilis albida (Walt.) Heimerl
   white four o'clock
Mirabilis alipes (S. Wats.) Pilz
   winged four o'clock
Mirabilis bigelovii Gray
   neakstem four o'clock
Mirabilis bigelovii var. bigelovii Gray
   Bigelow's four o'clock
Mirabilis californica Gray
   California four o'clock
Mirabilis coccinea (Torr.) Benth. & Hook. f.
   scarlet four o'clock
Mirabilis jalapa L.
   marvel of Peru
Mirabilis linearis (Pursh) Heimerl
   narrowleaf four o'clock
Mirabilis multiflora (Torr.) Gray
   Colorado four o'clock
Mirabilis nyctaginea (Michx.) MacM.
   heartleaf four o'clock
Mirabilis oxybaphoides (Gray) Gray
   smooth spreading four o'clock
Mirabilis pudica Barneby
   bashful four o'clock
Mirabilis pumila (Standl.) Standl.
   dwarf four o'clock
Selinocarpus nevadensis (Standl.) Fowler & Turner
   desert moonpod
Tripterocalyx crux-maltae (Kellogg) Standl.
   Lassen sandverbena
Tripterocalyx micranthus (Torr.) Hook.
   smallflower sandverbena

NYMPHAEACEAE
Nuphar lutea ssp. polysepala (Engelm.) E.O. Beal
   Rocky Mountain pondlily
Nymphaea odorata Ait.
   American white waterlily

OLEACEAE
Forestiera pubescens Nutt.
   stretchberry
Fraxinus anomala Torr. ex S. Wats.
   singleleaf ash
Fraxinus cuspidata Torr.
   fragrant ash
Fraxinus dipetala Hook. & Arn.
   two petal ash
Fraxinus velutina Torr.
   velvet ash
Menodora scabra Gray
   rough menodora
Menodora spinescens Gray
   spiny menodora

ONAGRACEAE
Calylophus lavandulifolius (Torr. & Gray) Raven
   lavenderleaf sundrops
Camissonia andina (Nutt.) Raven
   sundrops eveningprimrose
Camissonia boothii (Dougl. ex Lehm.) Raven
   Booth's eveningprimrose
Camissonia breviflora (Torr. & Gray) Raven
   fewflower eveningprimrose
Camissonia brevipes (Gray) Raven
   yellow cups
Camissonia brevipes ssp. brevipes (Gray) Raven
   golden suncup
Camissonia brevipes ssp. pallidula (Munz) Raven
   pallid suncup
Camissonia californica (Nutt. ex Torr. & Gray) Raven
   California suncup
Camissonia campestris (Greene) Raven
   Mojave suncup
Camissonia cardiophylla (Torr.) Raven
   heartleaf suncup
Camissonia chamaenerioides (Gray) Raven
   longcapsule suncup
Camissonia claviformis (Torr. & Frem.) Raven
   browneyes
Camissonia contorta (Dougl. ex Lehm.) Kearney
   plains eveningprimrose
Camissonia heterochroma (S. Wats.) Raven
   purple suncup
Camissonia kernensis (Munz) Raven
   Kern County suncup
Camissonia kernensis ssp. gilmanii (Munz) Raven
   Gilman's suncup
Camissonia megalantha (Munz) Raven
   largeflower suncup
Camissonia minor (A. Nels.) Raven
   small eveningprimrose
Camissonia multijuga (S. Wats.) Raven
   froststem suncup
Camissonia munzii (Raven) Raven
   Death Valley suncup
Camissonia nevadensis (Kellogg) Raven
   Nevada suncup
Camissonia pallida (Abrams) Raven
   paleyellow suncup
Camissonia palmeri (S. Wats.) Raven
   Palmer eveningprimrose
Camissonia parryi (S. Wats.) Raven
   redclay suncup
Camissonia parvula (Nutt. ex Torr. & Gray) Raven
   Lewis River suncup
Camissonia pterosperma (S. Wats.) Raven
   wingfruit suncup
Camissonia pubens (S. Wats.) Raven
   hairy suncup
Camissonia pusilla Raven
   little wiry suncup
Camissonia refracta (S. Wats.) Raven
   narrowleaf suncup
Camissonia scapoidea (Nutt. ex Torr. & Gray) Raven
   barestem eveningprimrose
Camissonia subacaulis (Pursh) Raven
   diffuseflower eveningprimrose
Camissonia tanacetifolia (Torr. & Gray) Raven
   tansyleaf eveningprimrose
Camissonia walkeri (A. Nels.) Raven
   Walker's suncup
Circaea alpina L.
   small enchanter's nightshade
Clarkia lassenensis (Eastw.) H.F. & M.E. Lewis
   Mt. Lassen fairyfan
Clarkia rhomboidea Dougl. ex Hook.
   diamond fairyfan
Epilobium anagallidifolium Lam.
   alpine willowherb
Epilobium angustifolium L.
   fireweed
Epilobium angustifolium ssp. circumvagum Mosquin
   fireweed
Epilobium brachycarpum K. Presl
   autumn willowweed
Epilobium canum (Greene) Raven
   hummingbird trumpet
Epilobium ciliatum Raf.
   hairy willowherb
Epilobium densiflorum (Lindl.) Hoch & Raven
Epilobium glaberrimum Barbey
   smooth willowweed
Epilobium halleanum Hausskn.
   glandular willowherb
Epilobium hornemannii Reichenb.
   Hornemann's willowherb
Epilobium lactiflorum Hausskn.
   milkflower willowweed
Epilobium latifolium L.
   dwarf fireweed
Epilobium leptophyllum Raf.
   bog willowherb
Epilobium minutum Lindl. ex Lehm.
   small willowweed
Epilobium nevadense Munz
   Nevada willowherb
Epilobium obcordatum Gray
   heart willowweed
Epilobium oregonense Hausskn.
   slimstem willowweed
Epilobium palustre L.
   marsh willowherb
Epilobium pygmaeum (Speg.) Hoch & Raven
Epilobium saximontanum Hausskn.
   Rocky Mountain willowherb
Epilobium torreyi (S. Wats.) Hoch & Raven
Gaura coccinea Nutt. ex Pursh
   scarlet beeblossom
Gaura parviflora Dougl. ex Lehm.
   velvetweed
Gayophytum decipiens Lewis & Szweykowski
   deceptive groundsmoke
Gayophytum diffusum Torr. & Gray
   spreading groundsmoke
Gayophytum heterozygum Lewis & Szweykowski
   zigzag groundsmoke
Gayophytum humile Juss.
   dwarf groundsmoke
Gayophytum racemosum Torr. & Gray
   blackfoot groundsmoke
Gayophytum ramosissimum Torr. & Gray
   pinyon groundsmoke
Ludwigia repens J.R. Forst.
   creeping primrosewillow
Oenothera albicaulis Pursh
   whitest eveningprimrose
Oenothera californica (S. Wats.) S. Wats.
   California eveningprimrose
Oenothera cavernae Munz
   cavedwelling eveningprimrose
Oenothera cespitosa Nutt.
   tufted eveningprimrose
Oenothera deltoides Torr. & Frem.
   birdcage eveningprimrose
Oenothera elata Kunth
   Hooker's eveningprimrose
Oenothera flava (A. Nels.) Garrett
   yellow eveningprimrose
Oenothera heterophylla Spach
   variableleaf eveningprimrose
Oenothera howardii (A. Nels.) W.L. Wagner
   Howard's eveningprimrose
Oenothera longissima Rydb.
   longstem eveningprimrose
Oenothera pallida Lindl.
   pale eveningprimrose
Oenothera primiveris Gray
   desert eveningprimrose
Oenothera villosa Thunb.
   hairy eveningprimrose
Oenothera xylocarpa Coville
   woodyfruit eveningprimrose

OPHIOGLOSSACEAE
Botrychium ascendens W.H. Wagner
   trianglelobe moonwort
Botrychium lunaria (L.) Sw.
   common moonwort
Botrychium minganense Victorin
   Mingan moonwort
Botrychium pinnatum St. John
   northern moonwort
Botrychium simplex E. Hitchc.
   little grapefern

ORCHIDACEAE
Corallorrhiza maculata (Raf.) Raf.
   summer coralroot
Corallorrhiza striata Lindl.
   hooded coralroot
Corallorrhiza striata var. striata Lindl.
   hooded coralroot
Corallorrhiza trifida Chatelain
   yellow coralroot
Epipactis gigantea Dougl. ex Hook.
   giant helleborine
Listera convallarioides (Sw.) Nutt. ex Ell.
   broadlipped twayblade
Listera cordata (L.) R. Br. ex Ait. f.
   heartleaf twayblade
Piperia unalascensis (Spreng.) Rydb.
   Alaska rein orchid
Platanthera dilatata (Pursh) Lindl. ex Beck
   boreal bog orchid
Platanthera dilatata var. dilatata (Pursh) Lindl. ex Beck
   scentbottle
Platanthera hyperborea (L.) Lindl.
   northern green orchid
Platanthera leucostachys Lindl.
   bog orchid
Platanthera sparsiflora (S. Wats.) Schlechter
   canyon bog orchid
Platanthera stricta Lindl.
   Modoc bog orchid
Spiranthes diluvialis Sheviak
   diluvim ladiestresses
Spiranthes infernalis Sheviak
   Ash Meadows ladiestresses
Spiranthes porrifolia Lindl.
   creamy ladiestresses
Spiranthes romanzoffiana Cham.
   hooded ladiestresses

OROBANCHACEAE
Orobanche californica Cham. & Schlecht.
   California broomrape
Orobanche cooperi (Gray) Heller
   desert broomrape
Orobanche corymbosa (Rydb.) Ferris
   flattop broomrape
Orobanche fasciculata Nutt.
   clustered broomrape
Orobanche ludoviciana Nutt.
   Louisiana broomrape
Orobanche ludoviciana ssp. ludoviciana Nutt.
   sand broomrape
Orobanche uniflora L.
   oneflowered broomrape

OXALIDACEAE
Oxalis corniculata L.
   creeping woodsorrel

PAEONIACEAE
Paeonia brownii Dougl. ex Hook.
   Brown's peony

PAPAVERACEAE
Arctomecon californica Torr. & Frem.
   California bearpoppy
Arctomecon merriamii Coville
   desert bearpoppy
Argemone corymbosa Greene
   Mojave pricklypoppy
Argemone munita Dur. & Hilg.
   flatbud pricklypoppy
Canbya aurea S. Wats.
   golden pygmypoppy
Eschscholzia californica Cham.
   California poppy
Eschscholzia glyptosperma Greene
   desert goldenpoppy
Eschscholzia minutiflora S. Wats.
   pygmy goldenpoppy
Glaucium corniculatum (L.) J.H. Rudolph
   blackspot hornpoppy

PEDALIACEAE
Proboscidea louisianica (P. Mill.) Thellung
   common devilsclaw
Proboscidea parviflora (Woot.) Woot. & Standl.
   doubleclaw

PINACEAE
Abies concolor (Gord. & Glend.) Lindl. ex Hildebr.
   white fir
Abies lasiocarpa (Hook.) Nutt.
   subalpine fir
Abies magnifica A. Murr.
   California red fir
Picea engelmannii Parry ex Engelm.
   Engelmann's spruce
Pinus albicaulis Engelm.
   whitebark pine
Pinus contorta Dougl. ex Loud.
   lodgepole pine
Pinus contorta var. murrayana (Grev. & Balf.) Engelm.
   Murray lodgepole pine
Pinus edulis Engelm.
   twoneedle pinyon
Pinus flexilis James
   limber pine
Pinus jeffreyi Grev. & Balf.
   Jeffrey pine
Pinus lambertiana Dougl.
   sugar pine
Pinus longaeva D.K. Bailey
   Great Basin bristlecone pine
Pinus monophylla Torr. & Frem.
   singleleaf pinyon
Pinus monticola Dougl. ex D. Don
   western white pine
Pinus ponderosa P.& C. Lawson
   ponderosa pine
Pinus washoensis Mason & Stockwell
   Washoe pine
Pseudotsuga menziesii (Mirbel) Franco
   Douglas fir
Pseudotsuga menziesii var. glauca (Beissn.) Franco
   Rocky Mountain Douglas fir
Pseudotsuga menziesii var. menziesii (Mirbel) Franco
   Douglas fir
Tsuga mertensiana (Bong.) Carr.
   mountain hemlock

PLANTAGINACEAE
Plantago eriopoda Torr.
   redwool plantain
Plantago lanceolata L.
   narrowleaf plantain
Plantago major L.
   common plantain
Plantago ovata Forsk.
   desert Indianwheat
Plantago patagonica Jacq.
   woolly plantain

POLEMONIACEAE
Allophyllum gilioides (Benth.) A.& V. Grant
   dense false gilyflower
Allophyllum integrifolium (Brand) A.& V. Grant
   white false gilyflower
Collomia debilis (S. Wats.) Greene
   alpine mountaintrumpet
Collomia grandiflora Dougl. ex Lindl.
   largeflower mountaintrumpet
Collomia linearis Nutt.
   narrowleaf mountaintrumpet
Collomia renacta E. Joyal
   Barren Valley mountaintrumpet
Collomia tenella Gray
   diffuse mountaintrumpet
Collomia tinctoria Kellogg
   yellowstaining mountaintrumpet
Eriastrum densifolium (Benth.) Mason
   giant woolstar
Eriastrum diffusum (Gray) Mason
   miniature woolstar
Eriastrum eremicum (Jepson) Mason
   desert woolstar
Eriastrum sparsiflorum (Eastw.) Mason
   Great Basin woolstar
Eriastrum wilcoxii (A. Nels.) Mason
   Wilcox's woolstar
Gilia aliquanta A.& V. Grant
   puffcalyx gilia
Gilia brecciarum M.E. Jones
   Nevada gilia
Gilia campanulata Gray
   bellshape gilia
Gilia cana (M.E. Jones) Heller
   showy gilia
Gilia capillaris Kellogg
   miniature gilia
Gilia clokeyi Mason
   Clokey's gilia
Gilia filiformis Parry ex Gray
   yellow gilia
Gilia hutchinsifolia Rydb.
   desert pale gilia
Gilia inconspicua (Sm.) Sweet
   shy gilia
Gilia inyoensis I.M. Johnston
   Inyo gilia
Gilia latifolia S. Wats.
   broadleaf gilia
Gilia leptalea (Gray) Greene
   Bridges' gilia
Gilia leptantha Parish
   fineflower gilia
Gilia leptomeria Gray
   sand gilia
Gilia malior Day & V. Grant
   scrub gilia
Gilia micromeria Gray
   dainty gilia
Gilia minor A.& V. Grant
   little gilia
Gilia modocensis Eastw.
   Modoc gilia
Gilia nyensis Reveal
   Nye gilia
Gilia ochroleuca M.E. Jones
   volcanic gilia
Gilia ophthalmoides Brand
   eyed gilia
Gilia ripleyi Barneby
   Ripley's gilia
Gilia salticola Eastw.
   salt gilia
Gilia scopulorum M.E. Jones
   rock gilia
Gilia sinuata Dougl. ex Benth.
   rosy gilia
Gilia stellata Heller
   star gilia
Gilia subnuda Torr. ex Gray
   coral gilia
Gilia tenerrima Gray
   delicate gilia
Gilia transmontana (Mason & A. Grant) A.& V. Grant
   transmontane gilia
Gilia triodon Eastw.
   coyote gilia
Gilia tweedyi Rydb.
   Tweedy's gila
Gymnosteris nudicaulis (Hook. & Arn.) Greene
   nakedstem gymnosteris
Gymnosteris parvula Heller
   smallflower gymnosteris
Ipomopsis aggregata (Pursh) V. Grant
   skyrocket gilia
Ipomopsis arizonica (Greene) Wherry
   Arizona skyrocket
Ipomopsis congesta (Hook.) V. Grant
   ballhead gilia
Ipomopsis depressa (M.E. Jones ex Gray) V. Grant
   depressed skyrocket
Ipomopsis macrosiphon (Kearney & Peebles) V. Grant & Wilken
Ipomopsis polycladon (Torr.) V. Grant
   manybranched gilia
Langloisia setosissima (Torr. & Gray ex Torr.) Greene
   moth langloisia
Leptodactylon caespitosum Nutt.
   mat pricklygilia
Leptodactylon pungens (Torr.) Torr. ex Nutt.
   granite pricklygilia
Leptodactylon watsonii (Gray) Rydb.
   Watson's pricklygilia
Linanthus arenicola (M.E. Jones) Jepson & V. Bailey
   sanddune deserttrumpets
Linanthus aureus (Nutt.) Greene
   golden deserttrumpets
Linanthus bigelovii (Gray) Greene
   Bigelow's deserttrumpets
Linanthus ciliatus (Benth.) Greene
   whiskerbrush
Linanthus demissus (Gray) Greene
   desertsnow
Linanthus dichotomus Benth.
   eveningsnow
Linanthus harknessii (Curran) Greene
   Harkness' flaxflower
Linanthus jonesii (Gray) Greene
   Jones' deserttrumpets
Linanthus nuttallii (Gray) Greene ex Milliken
   Nuttall's deserttrumpets
Linanthus pachyphyllus Patterson
   Sierran deserttrumpets
Linanthus septentrionalis Mason
   northern linanthus
Loeseliastrum matthewsii (Gray) Timbrook
   desert calico
Loeseliastrum schottii (Torr.) Timbrook
   Schott's calico
Navarretia breweri (Gray) Greene
   Brewer's navarretia
Navarretia divaricata (Torr. ex Gray) Greene
   divaricate navarretia
Navarretia intertexta (Benth.) Hook.
   needleleaf navarretia
Navarretia leucocephala Benth.
   whitehead navarretia
Phlox austromontana Coville
   desert phlox
Phlox caespitosa Nutt.
   tufted phlox
Phlox covillei E. Nels.
   Coville's phlox
Phlox diffusa Benth.
   spreading phlox
Phlox gladiformis (M.E. Jones) E. Nels.
   musky phlox
Phlox gracilis (Hook.) Greene
   slender phlox
Phlox griseola Wherry
   grayleaf phlox
Phlox hoodii Richards.
   spiny phlox
Phlox kelseyi Britt.
   Kelsey's phlox
Phlox longifolia Nutt.
   longleaf phlox
Phlox multiflora A. Nels.
   flowery phlox
Phlox pulvinata (Wherry) Cronq.
   cushion phlox
Phlox rigida Benth.
   stiff phlox
Phlox speciosa Pursh
   showy phlox
Phlox stansburyi (Torr.) Heller
   colddesert phlox
Phlox viridis E. Nels.
   green phlox
Phlox viscida E. Nels.
   sticky phlox
Polemonium brandegei (Gray) Greene
   Brandegee's Jacobsladder
Polemonium chartaceum Mason
   Mason's Jacobsladder
Polemonium micranthum Benth.
   annual polemonium
Polemonium nevadense Wherry
   Nevada Jacobsladder
Polemonium occidentale Greene
   western polemonium
Polemonium pulcherrimum Hook.
   skunkleaf polemonium
Polemonium viscosum Nutt.
   sticky polemonium

POLYGALACEAE
Polygala heterorhyncha (Barneby) T. Wendt
   beaked spiny polygala
Polygala intermontana T. Wendt
   Intermountain milkwort
Polygala subspinosa S. Wats.
   spiny polygala

POLYGONACEAE
Centrostegia thurberi Gray ex Benth.
   red triangles
Chorizanthe brevicornu Torr.
   brittle spineflower
Chorizanthe corrugata (Torr.) Torr. & Gray
   wrinkled spineflower
Chorizanthe rigida (Torr.) Torr. & Gray
   devil's spineflower
Chorizanthe watsonii Torr. & Gray
   fivetooth spineflower
Eriogonum ampullaceum J.T. Howell
   Mono buckwheat
Eriogonum anemophilum Greene
   west Humboldt buckwheat
Eriogonum argophyllum Reveal
   Sulphur Hot Springs buckwheat
Eriogonum baileyi S. Wats.
   Bailey's buckwheat
Eriogonum beatleyae Reveal
   Beatley's buckwheat
Eriogonum bifurcatum Reveal
   Pahrump Valley buckwheat
Eriogonum brachyanthum Coville
   shortflower buckwheat
Eriogonum brachypodum Torr. & Gray
   Parry's buckwheat
Eriogonum brevicaule Nutt.
   shortstem buckwheat
Eriogonum caespitosum Nutt.
   matted buckwheat
Eriogonum cernuum Nutt.
   nodding buckwheat
Eriogonum collinum S. Stokes ex M.E. Jones
   juniper buckwheat
Eriogonum concinnum Reveal
   mourning buckwheat
Eriogonum contiguum (Reveal) Reveal
   annual desert trumpet
Eriogonum corymbosum Benth.
   crispleaf buckwheat
Eriogonum crosbyae Reveal
   Crosby's buckwheat
Eriogonum darrovii Kearney
   Darrow's buckwheat
Eriogonum deflexum Torr.
   flatcrown buckwheat
Eriogonum desertorum (Maguire) R.J. Davis
   Great Basin Desert buckwheat
Eriogonum douglasii Benth.
   Douglas' buckwheat
Eriogonum elatum Dougl. ex Benth.
   tall woolly buckwheat
Eriogonum esmeraldense S. Wats.
   Esmeralda buckwheat
Eriogonum fasciculatum Benth.
   Eastern Mojave buckwheat
Eriogonum glandulosum (Nutt.) Nutt. ex Benth.
   acorn buckwheat
Eriogonum gracilipes S. Wats.
   White Mountain buckwheat
Eriogonum heermannii Dur. & Hilg.
   Heermann's buckwheat
Eriogonum heracleoides Nutt.
   parsnipflower buckwheat
Eriogonum holmgrenii Reveal
   Snake Range buckwheat
Eriogonum hookeri S. Wats.
   Hooker's buckwheat
Eriogonum howellianum Reveal
   Howell's buckwheat
Eriogonum inflatum Torr. & Frem.
   Native American pipeweed
Eriogonum insigne S. Wats.
   ladder buckwheat
Eriogonum kingii Torr. & Gray
   Ruby Mountain buckwheat
Eriogonum latens Jepson
   Inyo buckwheat
Eriogonum lewisii Reveal
   Lewis' buckwheat
Eriogonum lobbii Torr. & Gray
   granite buckwheat
Eriogonum maculatum Heller
   spotted buckwheat
Eriogonum marifolium Torr. & Gray
   marumleaf buckwheat
Eriogonum microthecum Nutt.
   slender buckwheat
Eriogonum nidularium Coville
   birdnest buckwheat
Eriogonum nudum Dougl. ex Benth.
   naked buckwheat
Eriogonum nutans Torr. & Gray
   Dugway buckwheat
Eriogonum ochrocephalum S. Wats.
   whitewoolly buckwheat
Eriogonum ovalifolium Nutt.
   cushion buckwheat
Eriogonum palmerianum Reveal
   Palmer's buckwheat
Eriogonum panamintense Morton
   Panamint Mountain buckwheat
Eriogonum pharnaceoides Torr.
   wirestem buckwheat
Eriogonum plumatella Dur. & Hilg.
   yucca buckwheat
Eriogonum prociduum Reveal
   prostrate buckwheat
Eriogonum puberulum S. Wats.
   Red Creek buckwheat
Eriogonum pusillum Torr. & Gray
   yellowturbans
Eriogonum racemosum Nutt.
   redroot buckwheat
Eriogonum reniforme Torr. & Frem.
   kidneyleaf buckwheat
Eriogonum rixfordii S. Stokes
   pagoda buckwheat
Eriogonum rosense A. Nels. & Kennedy
   rosy buckwheat
Eriogonum rubricaule Tidestrom
   redstem buckwheat
Eriogonum rupinum Reveal
   Wyman Creek buckwheat
Eriogonum salicornioides Gandog.
   saltwort buckwheat
Eriogonum saxatile S. Wats.
   hoary buckwheat
Eriogonum shockleyi S. Wats.
   Shockley's buckwheat
Eriogonum spergulinum Gray
   spurry buckwheat
Eriogonum sphaerocephalum Dougl. ex Benth.
   rock buckwheat
Eriogonum strictum Benth.
   Blue Mountain buckwheat
Eriogonum thomasii Torr.
   Thomas' buckwheat
Eriogonum tiehmii Reveal
   Tiehm's buckwheat
Eriogonum trichopes Torr.
   little deserttrumpet
Eriogonum umbellatum Torr.
   sulphur wildbuckwheat
Eriogonum villiflorum Gray
   gray buckwheat
Eriogonum vimineum Dougl. ex Benth.
   wickerstem buckwheat
Eriogonum viscidulum J.T. Howell
   sticky buckwheat
Eriogonum watsonii Torr. & Gray
   Watson's buckwheat
Eriogonum wrightii Torr. ex Benth.
   bastardsage
Gilmania luteola (Coville) Coville
   oldencarpet
Oxyria digyna (L.) Hill
   alpine mountainsorrel
Oxytheca dendroidea Nutt.
   narrowleaf oxytheca
Oxytheca perfoliata Torr. & Gray
   roundleaf puncturebract
Oxytheca watsonii Torr. & Gray
   Watson's puncturebract
Polygonum amphibium L.
   water knotweed
Polygonum arenastrum Jord. ex Boreau
   ovalleaf knotweed
Polygonum argyrocoleon Steud. ex Kunze
   silversheath knotweed
Polygonum aviculare L.
   prostrate knotweed
Polygonum bistortoides Pursh
   American bistort
Polygonum convolvulus L.
   black bindweed
Polygonum douglasii Greene
   Douglas' knotweed
Polygonum heterosepalum M.E. Peck & Ownbey
   oddsepal knotweed
Polygonum hydropiper L.
   marshpepper knotweed
Polygonum lapathifolium L.
   curlytop knotweed
Polygonum minimum S. Wats.
   broadleaf knotweed
Polygonum paronychia Cham. & Schlecht.
   beach knotweed
Polygonum pensylvanicum L.
   Pennsylvania smartweed
Polygonum persicaria L.
   spotted ladysthumb
Polygonum phytolaccifolium Meisn. ex Small
   poke knotweed
Polygonum polygaloides Wallich ex Meisn.
   polygala knotweed
Polygonum ramosissimum Michx.
   bushy knotweed
Polygonum shastense Brewer ex Gray
   Shasta knotweed
Polygonum viviparum L.
   alpine bistort
Pterostegia drymarioides Fisch. & C.A. Mey.
   woodland pterostegia
Rumex acetosella L.
   common sheep sorrel
Rumex aquaticus L.
   western dock
Rumex crispus L.
   curly dock
Rumex hymenosepalus Torr.
   canaigre dock
Rumex maritimus L.
   golden dock
Rumex patientia L.
   patience dock
Rumex paucifolius Nutt.
   fewleaved dock
Rumex salicifolius Weinm.
   willow dock
Rumex subalpinus M.E. Jones
   subalpine dock
Rumex venosus Pursh
   veiny dock
Stenogonum salsuginosum Nutt.
   salty eriogonum

PORTULACACEAE
Calandrinia ciliata (Ruiz & Pavon) DC.
   fringed redmaids
Cistanthe monandra (Nutt.) Hershkovitz
   common pussypaws
Cistanthe monosperma (Greene) Hershkovitz
   oneseed pussypaws
Cistanthe parryi (Gray) Hershkovitz
   Parry's pussypaws
Cistanthe rosea (S. Wats.) Hershkovitz
   rosy pussypaws
Cistanthe umbellata (Torr.) Hershkovitz
   Mt. Hood pussypaws
Claytonia exigua Torr. & Gray
Claytonia lanceolata Pursh
   lanceleaf springbeauty
Claytonia megarhiza (Gray) Parry ex S. Wats.
   alpine springbeauty
Claytonia parviflora Dougl. ex Hook.
   streambank springbeauty
Claytonia perfoliata Donn ex Willd.
   miner's lettuce
Claytonia rubra (T.J. Howell) Tidestrom
   redstem springbeauty
Claytonia spathulata Dougl. ex Hook.
   pale springbeauty
Claytonia triphylla S. Wats.
= Lewisia triphylla
Claytonia umbellata S. Wats.
   Great Basin springbeauty
Lewisia maguirei A. Holmgren
   Maguire's bitterroot
Lewisia nevadensis (Gray) B.L. Robins.
   Nevada bitterroot
Lewisia pygmaea (Gray) B.L. Robins.
   pigmy bitterroot
Lewisia rediviva Pursh
   Oregon bitterroot
Lewisia triphylla (S. Wats.) B.L. Robins.
   threeleaf lewisia
Montia chamissoi (Ledeb. ex Spreng.) Greene
   water minerslettuce
Montia fontana L.
   annual water minerslettuce
Montia linearis (Dougl. ex Hook.) Greene
   narrowleaf minerslettuce
Montia perfoliata (Donn ex Willd.) T.J. Howell
= Claytonia perfoliata ssp. perfoliata
Portulaca halimoides L.
   silkcotton purslane
Portulaca oleracea L.
   little hogweed
Portulaca pilosa L.
   kiss me quick

POTAMOGETONACEAE
Potamogeton alpinus Balbis
   alpine pondweed
Potamogeton crispus L.
   curly pondweed
Potamogeton diversifolius Raf.
   waterthread pondweed
Potamogeton epihydrus Raf.
   ribbonleaf pondweed
Potamogeton filiformis Pers.
   fineleaf pondweed
Potamogeton foliosus Raf.
   leafy pondweed
Potamogeton gramineus L.
   variableleaf pondweed
Potamogeton illinoensis Morong
   Illinois pondweed
Potamogeton latifolius (J.W. Robbins) Morong
   broadleaf pondweed
Potamogeton natans L.
   floating pondweed
Potamogeton nodosus Poir.
   longleaf pondweed
Potamogeton pectinatus L.
   sago pondweed
Potamogeton pusillus L.
   small pondweed
Potamogeton richardsonii (Benn.) Rydb.
   Richardson's pondweed

PRIMULACEAE
Anagallis arvensis L.
   scarlet pimpernel
Androsace elongata L.
   California rockjasmine
Androsace septentrionalis L.
   pygmyflower rockjasmine
Dodecatheon alpinum (Gray) Greene
   alpine shootingstar
Dodecatheon conjugens Greene
   Bonneville shootingstar
Dodecatheon pulchellum (Raf.) Merr.
   darkthroat shootingstar
Dodecatheon redolens (Hall) H.J. Thompson
   scented shootingstar
Glaux maritima L.
   sea milkwort
Primula capillaris N.& A. Holmgren
   Ruby Mountain primrose
Primula nevadensis N. Holmgren
   Nevada primrose
Primula parryi Gray
   Parry's primrose
Samolus ebracteatus Kunth
   limewater brookweed
Samolus valerandi L.
   seaside brookweed

PTERIDACEAE
Adiantum aleuticum (Rupr.) Paris
   Aleutian maidenhair
Adiantum capillus-veneris L.
   common maidenhair
Adiantum pedatum ssp. aleuticum (Rupr.) Calder & Taylor
= Adiantum aleuticum
Argyrochosma jonesii (Maxon) Windham
   Jones' falsecloak fern
Aspidotis densa (Brack.) Lellinger
   Indian's dream
Astrolepis integerrima (Hook.) Benham & Windham
   hybrid cloakfern
Cheilanthes covillei Maxon
   Coville's lipfern
Cheilanthes feei T. Moore
   slender lipfern
Cheilanthes gracillima D.C. Eat.
   lace lipfern
Cheilanthes parryi (D.C. Eat.) Domin
   Parry's lipfern
Cryptogramma acrostichoides R. Br.
   American rockbrake
Cryptogramma stelleri (Gmel.) Prantl
   fragile rockbrake
Notholaena integerrima (Hook.) Hevly
= Astrolepis integerrima
Pellaea breweri D.C. Eat.
   Brewer's cliffbrake
Pellaea bridgesii Hook.
   Bridges' cliffbrake
Pellaea glabella Mett. ex Kuhn
   dwarf cliffbrake
Pellaea mucronata (D.C. Eat.) D.C. Eat.
   birdfoot cliffbrake
Pellaea truncata Goodding
   spiny cliffbrake
Pentagrama Yatskievych, Windham & Wollenweber
   gold fern
Pentagrama triangularis (Kaulfuss) Yatskievych, Windham & Wollenweber
   western goldfern

RAFFLESIACEAE
Pilostyles thurberi Gray
   stemsucker

RANUNCULACEAE
Aconitum columbianum Nutt.
   Columbian monkshood
Actaea arguta Nutt.
= Actaea rubra ssp. arguta
Actaea rubra (Ait.) Willd.
   red baneberry
Anemone globosa (Torr. & Gray) Nutt. ex Pritz.
= Anemone multifida var. hudsoniana
Anemone lithophila Rydb.
   Little Belt Mountain thimbleweed
Anemone multifida Poir.
   Pacific anemone
Anemone tuberosa Rydb.
   tuber anemone
Aquilegia chrysantha Gray
   golden columbine
Aquilegia coerulea James
   Colorado blue columbine
Aquilegia formosa Fisch. ex DC.
   western columbine
Aquilegia scopulorum Tidestrom
   Utah columbine
Caltha biflora DC.
= Caltha leptosepala ssp. howellii
Caltha leptosepala DC.
   white marshmarigold
Caltha leptosepala ssp. howellii (Huth) P.G. Sm.
   Howell's marshmarigold
Ceratocephala testiculata (Crantz) Bess.
   curveseed butterwort
Clematis ligusticifolia Nutt.
   western white clematis
Delphinium X occidentale (S. Wats.) S. Wats.
   duncecap larkspur
Delphinium andersonii Gray
   Anderson's larkspur
Delphinium depauperatum Nutt.
   slim larkspur
Delphinium glaucum S. Wats.
   Sierra larkspur
Delphinium nuttallianum Pritz. ex Walp.
   Nuttal's larkspur
Delphinium occidentale ssp. occidentale (S. Wats.) S. Wats.
   duncecap larkspur
Delphinium parishii Gray
   desert larkspur
Delphinium polycladon Eastw.
   mountain marsh larkspur
Delphinium scaposum Greene
   tall mountain larkspur
Myosurus apetalus var. montanus (Campbell) Whitemore
Myosurus aristatus Benth.
   bristle mousetail
Myosurus cupulatus S. Wats.
   Arizona mousetail
Myosurus minumus L.
   tiny mousetail
Ranunculus acris L.
   tall buttercup
Ranunculus adoneus Gray
   alpine buttercup
Ranunculus alismifolius Geyer ex Benth.
   plantainleaf buttercup
Ranunculus andersonii Gray
   Anderson's buttercup
Ranunculus aquatilis L.
   whitewater crowfoot
Ranunculus cymbalaria Pursh
   alkali buttercup
Ranunculus eschscholtzii Schlecht.
   Eschscholtz's buttercup
Ranunculus flabellaris Raf.
   yellow water buttercup
Ranunculus flammula L.
   spearwort buttercup
Ranunculus glaberrimus Hook.
   sagebrush buttercup
Ranunculus gmelinii DC.
   Gmelin's buttercup
Ranunculus hydrocharoides Gray
   frogbit buttercup
Ranunculus hyperboreus Rottb.
   high northern buttercup
Ranunculus inamoenus Greene
   graceful buttercup
Ranunculus jovis A. Nels.
   Utah buttercup
Ranunculus longirostris Godr.
   longbeak buttercup
Ranunculus macounii Britt.
   Macoun's buttercup
Ranunculus occidentalis Nutt.
   western buttercup
Ranunculus orthorhynchus Hook.
   straightbeak buttercup
Ranunculus repens L.
   creeping buttercup
Ranunculus sceleratus L.
   celeryleaf buttercup
Ranunculus trichophyllus Chaix
   whitewater crowfoot
Ranunculus uncinatus D. Don ex G. Don
   hooked buttercup
Thalictrum alpinum L.
   alpine meadowrue
Thalictrum fendleri Engelm. ex Gray
   Fendler's meadowrue
Thalictrum occidentale Gray
   western meadowrue
Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey.
   fewflower meadowrue

RESEDACEAE
Oligomeris linifolia (Vahl) J.F. Macbr.
   lineleaf whitepuff

RHAMNACEAE
Ceanothus cordulatus Kellogg
   whitethorn ceanothus
Ceanothus greggii Gray
   desert ceanothus
Ceanothus martinii M.E. Jones
   Martin's ceanothus
Ceanothus prostratus Benth.
   squawcarpet
Ceanothus velutinus Dougl. ex Hook.
   snowbrush ceanothus
Colubrina californica I.M. Johnston
   Las Animas nakedwood
Condalia lycioides var. canescens (Gray) Trel.
= Ziziphus obtusifolia var. canescens
Frangula betulifolia (Greene) V. Grub.
   beechleaf frangula
Frangula californica (Eschsch.) Gray
   California buckthorn
Frangula rubra (Greene) V. Grub.
   red buckthorn
Rhamnus betulifolia Greene
= Frangula betulifolia ssp. betulifolia
Rhamnus californica Eschsch.
= Frangula californica ssp. californica
Rhamnus crocea Nutt.
   redberry buckthorn
Ziziphus obtusifolia (Hook. ex Torr. & Gray) Gray
   lotebush

ROSACEAE
Adenostoma fasciculatum Hook. & Arn.
   common chamise
Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer
   Saskatoon serviceberry
Amelanchier pallida Greene
   pale serviceberry
Amelanchier utahensis Koehne
   Utah serviceberry
Argentina anserina (L.) Rydb.
   silverweed cinquefoil
Cercocarpus intricatus S. Wats.
   littleleaf mountain mahogany
Cercocarpus ledifolius Nutt.
   curlleaf mountain mahogany
Cercocarpus montanus Raf.
   true mountain mahogany
Chamaebatiaria millefolium (Torr.) Maxim.
   fernbush
Coleogyne ramosissima Torr.
   blackbrush
Cowania stansburiana Torr.
= Purshia stansburiana
Crataegus douglasii var. rivularis (Nutt.) Sarg.
= Crataegus rivularis
Crataegus flabellata (Spach) Kirchn.
   fanleaf hawthorn
Crataegus rivularis Nutt.
   river hawthorn
Fallugia paradoxa (D. Don) Endl. ex Torr.
   Apacheplume
Fragaria virginiana Duchesne
   Virginia strawberry
Geum macrophyllum Willd.
   largeleaf avens
Geum rossii (R. Br.) Ser.
   Ross' avens
Geum triflorum Pursh
   prairiesmoke
Holodiscus dumosus (Nutt. ex Hook.) Heller
   rockspirea
Horkelia fusca Lindl.
   tawny horkelia
Horkelia tridentata Torr.
   threetooth honeydew
Ivesia aperta (J.T. Howell) Munz
   Sierra Valley mousetail
Ivesia arizonica (Eastw. ex J.T. Howell) Ertter
   rock whitefeather
Ivesia baileyi S. Wats.
   Bailey's ivesia
Ivesia cryptocaulis (Clokey) Keck
   Charleston Peak mousetail
Ivesia gordonii (Hook.) Torr. & Gray
   Gordon's ivesia
Ivesia jaegeri Munz & Johnston
   Jaeger's mousetail
Ivesia kingii S. Wats.
   King's mousetail
Ivesia lycopodioides Gray
   clubmoss mousetail
Ivesia pityocharis Ertter
   Pine Nut Mountain mousetail
Ivesia pygmaea Gray
   dwarf mousetail
Ivesia rhypara Ertter & Reveal
   grimy mousetail
Ivesia sabulosa (M.E. Jones) Keck
   Intermountain mousetail
Ivesia sericoleuca (Rydb.) Rydb.
   Plumas mousetail
Ivesia shockleyi S. Wats.
   sky mousetail
Ivesia webberi Gray
   wire mousetail
Pentaphylloides floribunda (Pursh) A. Love
   shrubby cinquefoil
Peraphyllum ramosissimum Nutt.
   squaw apple
Petrophyton caespitosum (Nutt.) Rydb.
   mat rockspirea
Physocarpus alternans (M.E. Jones) J.T. Howell
   dwarf ninebark
Physocarpus malvaceus (Greene) Kuntze
   mallow ninebark
Physocarpus monogynus (Torr.) Coult.
   mountain ninebark
Potentilla anserina L.
= Argentina anserina
Potentilla arguta Pursh
   tall cinquefoil
Potentilla basaltica Tiehm & Ertter
   Soldier Meadows cinquefoil
Potentilla biennis Greene
   biennial cinquefoil
Potentilla brevifolia Nutt. ex Torr. & Gray
   sparseleaf cinquefoil
Potentilla concinna Richards.
   elegant cinquefoil
Potentilla cottamii N. Holmgren
   Pilot Range cinquefoil
Potentilla crinita Gray
   bearded cinquefoil
Potentilla diversifolia Lehm.
   varileaf cinquefoil
Potentilla drummondii Lehm.
   Drummond's cinquefoil
Potentilla flabellifolia Hook. ex Torr. & Gray
   high mountain cinquefoil
Potentilla fruticosa auct. non L.
= Pentaphylloides floribunda
Potentilla glandulosa Lindl.
   gland cinquefoil
Potentilla gracilis Dougl. ex Hook.
   northwest cinquefoil
Potentilla hippiana Lehm.
   woolly cinquefoil
Potentilla millefolia Rydb.
   cutleaf cinquefoil
Potentilla multisecta (S. Wats.) Rydb.
   featherleaf cinquefoil
Potentilla newberryi Gray
   Newberry's cinquefoil
Potentilla nivea L.
   snow cinquefoil
Potentilla norvegica L.
   Norwegian cinquefoil
Potentilla ovina Macoun
   sheep cinquefoil
Potentilla pensylvanica L.
   Pennsylvania cinquefoil
Potentilla plattensis Nutt.
   Platte River cinquefoil
Potentilla pulcherrima Lehm.
   beautiful cinquefoil
Potentilla recta L.
   sulphur cinquefoil
Potentilla rivalis Nutt.
   brook cinquefoil
Potentilla subjuga Rydb.
   Colorado cinquefoil
Prunus andersonii Gray
   desert peach
Prunus emarginata (Dougl. ex Hook.) Walp.
   bitter cherry
Prunus fasciculata (Torr.) Gray
   desert almond
Prunus melanocarpa (A. Nels.) Rydb.
= Prunus virginiana var. melanocarpa
Prunus virginiana L.
   common chokecherry
Purshia glandulosa Curran
   desert bitterbrush
Purshia stansburiana (Torr.) Henrickson
   Stansbury cliffrose
Purshia tridentata (Pursh) DC.
   antelope bitterbrush
Rosa nutkana K. Presl
   Nootka rose
Rosa woodsii Lindl.
   Woods' rose
Rubus discolor Weihe & Nees
   Himalayan blackberry
Rubus idaeus L.
   American red raspberry
Rubus leucodermis Dougl. ex Torr. & Gray
   whitebark raspberry
Rubus parviflorus Nutt.
   thimbleberry
Rubus ulmifolius Schott
   elmleaf blackberry
Sanguisorba minor Scop.
   small burnet
Sanguisorba occidentalis Nutt.
   western burnet
Sibbaldia procumbens L.
   creeping sibbaldia
Sorbus californica Greene
   California mountainash
Sorbus scopulina Greene
   Greene mountainash
Sorbus scopulina var. scopulina Greene
   Cascade mountainash
Spiraea discolor Pursh
= Holodiscus discolor
Spiraea splendens Baumann ex K. Koch
   rose meadowsweet
Spiraea splendens var. splendens Baumann ex K. Koch
   mountain spirea

RUBIACEAE
Galium aparine L.
   stickywilly
Galium bifolium S. Wats.
   twinleaf bedstraw
Galium boreale L.
   northern bedstraw
Galium desereticum Dempster & Ehrend.
   desert bedstraw
Galium grayanum Ehrend.
   Gray's bedstraw
Galium hilendiae Dempster & Ehrend.
   Hilend's bedstraw
Galium hypotrichium Gray
   alpine bedstraw
Galium magnifolium (Dempster) Dempster
   largeleaf bedstraw
Galium matthewsii Gray
   bushy bedstraw
Galium mexicanum Kunth
   Mexican bedstraw
Galium multiflorum Kellogg
   shrubby bedstraw
Galium munzii Hilend & Howell
   Munz's bedstraw
Galium parishii Hilend & Howell
   Parish's bedstraw
Galium proliferum Gray
   limestone bedstraw
Galium serpenticum Dempster
   Intermountain bedstraw
Galium stellatum Kellogg
   starry bedstraw
Galium trifidum L.
   threepetal bedstraw
Galium triflorum Michx.
   ragrant bedstraw
Galium wrightii Gray
   Wright's bedstraw
Kelloggia galioides Torr.
   milk kelloggia
Rubia tinctoria L.
   madder

RUPPIACEAE
Ruppia maritima L.
   widgeongrass

RUTACEAE
Thamnosma montana Torr. & Frem.
   turpentinebroom

SALICACEAE
Populus X parryi Sarg.
   Parry's poplar
Populus alba L.
   white poplar
Populus angustifolia James
   narrowleaf cottonwood
Populus balsamifera L.
   balsam poplar
Populus balsamifera ssp. trichocarpa (Torr. & Gray ex Hook.) Brayshaw
   black cottonwood
Populus fremontii S. Wats.
   Fremont's cottonwood
Populus nigra L.
   Lombardy poplar
Populus tremuloides Michx.
   quaking aspen
Salix amygdaloides Anderss.
   peachleaf willow
Salix arctica R. Br. ex Richards.
Salix bebbiana Sarg.
   Bebb willow
Salix bonplandiana Kunth
   red willow
Salix boothii Dorn
   Booth's willow
Salix commutata Bebb
   undergreen willow
Salix drummondiana Barratt ex Hook.
   Drummond's willow
Salix eastwoodiae Cockerell ex Heller
   mountain willow
Salix exigua Nutt.
   sandbar willow
Salix geyeriana Anderss.
   Geyer's willow
Salix glauca L.
   grayleaf willow
Salix gooddingii Ball
   Goodding's willow
Salix jepsonii Schneid.
   Jepson's willow
Salix lasiolepis Benth.
   arroyo willow
Salix lemmonii Bebb
   Lemmon's willow
Salix lucida Muhl.
   shining willow
Salix lutea Nutt.
   yellow willow
Salix melanopsis Nutt.
   dusky willow
Salix myrtillifolia Anderss.
   blueberry willow
Salix orestera Schneid.
   Sierra willow
Salix planifolia Pursh
   diamondleaf willow
Salix prolixa Anderss.
   MacKenzie's willow
Salix reticulata L.
   netleaf willow
Salix wolfii Bebb
   Wolf's willow

SANTALACEAE
Comandra umbellata (L.) Nutt.
   bastard toadflax
Comandra umbellata ssp. californica (Eastw. ex Rydb.) Piehl
   California bastard toadflax
Comandra umbellata ssp. pallida (A. DC.) Piehl
   pale bastard toadflax

SAURURACEAE
Anemopsis californica (Nutt.) Hook. & Arn.
   yerba mansa

SAXIFRAGACEAE
Boykinia heucheriformis (Rydb.) Rosendahl
   alumroot brookfoam
Heuchera cylindrica Dougl. ex Hook.
   roundleaf alumroot
Heuchera duranii Bacig.
   hard alumroot
Heuchera flabellifolia Rydb.
   Bridger Mountain alumroot
Heuchera grossulariifolia Rydb.
   gooseberryleaf alumroot
Heuchera parvifolia Nutt. ex Torr. & Gray
   littleleaf alumroot
Heuchera parvifolia var. utahensis (Rydb.) Garrett
   Utah alumroot
Heuchera rubescens Torr.
   pink alumroot
Lithophragma glabrum Nutt.
   bulbous woodlandstar
Lithophragma parviflorum (Hook.) Nutt. ex Torr. & Gray
   smallflower woodlandstar
Lithophragma tenellum Nutt.
   slender woodlandstar
Mitella breweri Gray
   Brewer's miterwort
Mitella pentandra Hook.
   fivestamen miterwort
Parnassia californica (Gray) Greene
   California grass of Parnassus
Parnassia fimbriata Koenig
   Rocky Mountain parnassia
Parnassia fimbriata var. fimbriata Koenig
   fringed grass of Parnassus
Parnassia kotzebuei Cham. ex Spreng.
   Kotzebue's grass of Parnassus
Parnassia palustris L.
   northern grass of Parnassus
Parnassia parviflora DC.
   smallflower grass of Parnassus
Saxifraga adscendens L.
   wedgeleaf saxifrage
Saxifraga aprica Greene
   Sierran saxifrage
Saxifraga cernua L.
   nodding saxifrage
Saxifraga cespitosa L.
   tufted alpine saxifrage
Saxifraga nidifica Greene
   peak saxifrage
Saxifraga odontoloma Piper
   brook saxifrage
Saxifraga oregana T.J. Howell
   Oregon saxifrage
Saxifraga rhomboidea Greene
   diamondleaf saxifrage
Saxifraga rivularis L.
   weak saxifrage
Saxifraga tolmiei Torr. & Gray
   Tolmie's saxifrage

SCROPHULARIACEAE
Bacopa eisenii (Kellogg) Pennell
   Gila River waterhyssop
Castilleja X porterae Cockerell
   Porter's Indian paintbrush
Castilleja angustifolia (Nutt.) G. Don
   northwestern Indian paintbrush
Castilleja applegatei Fern.
   wavyleaf Indian paintbrush
Castilleja arachnoidea Greenm.
   cobwebby Indian paintbrush
Castilleja cusickii Greenm.
   Cusick's Indian paintbrush
Castilleja dissitiflora N. Holmgren
   Mt. Hamilton Indian paintbrush
Castilleja flava S. Wats.
   yellow Indian paintbrush
Castilleja lemmonii Gray
   Lemmon's Indian paintbrush
Castilleja linariifolia Benth.
   Wyoming Indian paintbrush
Castilleja miniata Dougl. ex Hook.
   scarlet Indian paintbrush
Castilleja minor (Gray) Gray
   lesser Indian paintbrush
Castilleja nana Eastw.
   dwarf alpine Indian paintbrush
Castilleja pallescens (Gray) Greenm.
   pale Indian paintbrush
Castilleja peckiana Pennell
   Peck's Indian paintbrush
Castilleja pilosa (S. Wats.) Rydb.
   parrothead Indian paintbrush
Castilleja rhexiifolia Rydb.
   splitleaf Indian paintbrush
Castilleja salsuginosa N. Holmgren
   Monte Neva Indian paintbrush
Castilleja scabrida Eastw.
   rough Indian paintbrush
Castilleja tenuis (Heller) Chuang & Heckard
   Indian paintbrush
Castilleja viscidula Gray
   sticky Indian paintbrush
Collinsia callosa Parish
   desertmountain blue eyed Mary
Collinsia parviflora Lindl.
   smallflower blue eyed Mary
Collinsia parviflora var. parviflora Lindl.
   smallflower blue eyed Mary
Collinsia torreyi Gray
   Torrey's blue eyed Mary
Cordylanthus capitatus Nutt. ex Benth.
   Yakima bird's beak
Cordylanthus kingii S. Wats.
   King's bird's beak
Cordylanthus maritimus Nutt. ex Benth.
   saltmarsh bird's beak
Cordylanthus parviflorus (Ferris) Wiggins
   purple bird's beak
Cordylanthus ramosus Nutt. ex Benth.
   bushy bird's beak
Cordylanthus tecopensis Munz & Roos
   Tecopa bird's beak
Cordylanthus tenuis Gray
   slender bird's beak
Gratiola neglecta Torr.
   clammy hedgehyssop
Keckiella antirrhinoides (Benth.) Straw
   snapdragon penstemon
Keckiella breviflora (Lindl.) Straw
   bush beardtongue
Keckiella lemmonii (Gray) Straw
   Lemmon's penstemon
Keckiella rothrockii (Gray) Straw
   Rothrock's penstemon
Limosella acaulis Sesse & Moc.
   Owyhee mudwort
Limosella aquatica L.
   water mudwort
Linaria dalmatica (L.) P. Mill.
   Dalmatian toadflax
Linaria vulgaris P. Mill.
   butter and eggs
Lindernia dubia (L.) Pennell
   moistbank pimpernel
Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm.
   roving sailor
Mimetanthe pilosa (Benth.) Greene
   false monkeyflower
Mimulus bigelovii (Gray) Gray
   Bigelow's monkeyflower
Mimulus breweri (Greene) Coville
   Brewer's monkeyflower
Mimulus cardinalis Dougl. ex Benth.
   crimson monkeyflower
Mimulus coccineus Congd.
   red monkeyflower
Mimulus cusickii (Greene) Rattan
   Cusick's monkeyflower
Mimulus densus A.L. Grant
   yellow and purple monkeyflower
Mimulus eastwoodiae Rydb.
   Eastwood's monkeyflower
Mimulus floribundus Lindl.
   manyflowered monkeyflower
Mimulus glabratus Kunth
   roundleaf monkeyflower
Mimulus glabratus var. jamesii (Torr. & Gray ex Benth.) Gray
   James' monkeyflower
Mimulus guttatus DC.
   seep monkeyflower
Mimulus leptaleus Gray
   slender monkeyflower
Mimulus lewisii Pursh
   purple monkeyflower
Mimulus mephiticus Greene
   foul odor monkeyflower
Mimulus montioides Gray
   mointain monkeyflower
Mimulus moschatus Dougl. ex Lindl.
   musk monkeyflower
Mimulus nanus Hook. & Arn.
   dwarf purple monkeyflower
Mimulus ovatus (Gray) N. Holmgren
   eggleaf monkeyflower
Mimulus parishii Greene
   Parish's monkeyflower
Mimulus parryi Gray
   annual redspot monkeyflower
Mimulus primuloides Benth.
   primrose monkeyflower
Mimulus rubellus Gray
   red monkeyflower
Mimulus spissus A.L. Grant
   compact monkeyflower
Mimulus suksdorfii Gray
   Suksdorf's monkeyflower
Mimulus tilingii Regel
   Tiling's monkeyflower
Mohavea breviflora Coville
   golden desertsnapdragon
Mohavea confertiflora (A. DC.) Heller
   ghostflower
Neogaerrhinum filipes (Gray) Rothm.
   Filipes snapdragon
Orthocarpus cuspidatus Greene
   Siskiyou Mountain owlclover
Orthocarpus luteus Nutt.
   yellow owlclover
Pedicularis attollens Gray
   attol lousewort
Pedicularis centranthera Gray
   dwarf lousewort
Pedicularis crenulata Benth.
   meadow lousewort
Pedicularis groenlandica Retz.
   elephanthead lousewort
Pedicularis semibarbata Gray
   bearded lousewort
Penstemon acuminatus Dougl. ex Lindl.
   sharpleaf penstemon
Penstemon albomarginatus M.E. Jones
   whitemargin beardtongue
Penstemon ambiguus Torr.
   gilia beardtongue
Penstemon arenarius Greene
   Nevada sanddune beardtongue
Penstemon barnebyi N. Holmgren
   White River Valley beardtongue
Penstemon bicolor (Brandeg.) Clokey & Keck
   pinto beardtongue
Penstemon comarrhenus Gray
   dusty beardtongue
Penstemon concinnus Keck
   Tunnel Springs beardtongue
Penstemon confusus M.E. Jones
   Owens Valley beardtongue
Penstemon davidsonii Greene
   Davidson's penstemon
Penstemon deustus Dougl. ex Lindl.
   scabland penstemon
Penstemon deustus var. deustus Dougl. ex Lindl.
   hotrock beardtongue
Penstemon dolius M.E. Jones ex Pennell
   Jones' beardtongue
Penstemon eatonii Gray
   Eaton's penstemon
Penstemon floribundus D. Danley
   Cordillia's beardtongue
Penstemon floridus Brandeg.
   Panamint beardtongue
Penstemon fruticiformis Coville
   Death Valley beardtongue
Penstemon gracilentus Gray
   slender penstemon
Penstemon heterodoxus Gray
   Sierran beardtongue
Penstemon humilis Nutt. ex Gray
   low penstemon
Penstemon immanifestus N. Holmgren
   Steptoe Valley beardtongue
Penstemon janishiae N. Holmgren
   Antelope Valley beardtongue
Penstemon kingii S. Wats.
   King's beardtongue
Penstemon laetus Gray
   mountain blue penstemon
Penstemon leiophyllus Pennell
   smoothleaf beardtongue
Penstemon leonardii Rydb.
   Leonard's beardtongue
Penstemon linarioides Gray
   toadflax penstemon
Penstemon moriahensis N. Holmgren
   Mt. Moriah beardtongue
Penstemon newberryi Gray
   mountainpride penstemon
Penstemon pachyphyllus Gray ex Rydb.
   thickleaf beardtongue
Penstemon pahutensis N. Holmgren
   Paiute beardtongue
Penstemon palmeri Gray
   Palmer's penstemon
Penstemon patens (M.E. Jones) N. Holmgren
   Lone Pine beardtongue
Penstemon petiolatus Brandeg.
   petiolate beardtongue
Penstemon platyphyllus Rydb.
   broadleaf beardtongue
Penstemon pratensis Greene
   western whiteflower beardtongue
Penstemon procerus Dougl. ex Graham
   littleflower penstemon
Penstemon pudicus Reveal & Beatley
   Kawich Range beardtongue
Penstemon radicosus A. Nels.
   matroot penstemon
Penstemon rostriflorus Kellogg
   Bridge penstemon
Penstemon rubicundus Keck
   Wassuk Range beardtongue
Penstemon rydbergii A. Nels.
   Rydberg's penstemon
Penstemon speciosus Dougl. ex Lindl.
   royal penstemon
Penstemon spectabilis Thurb. ex Gray
   showy penstemon
Penstemon sudans M.E. Jones
   Susanville beardtongue
Penstemon thompsoniae (Gray) Rydb.
   Thompson's beardtongue
Penstemon thurberi Torr.
   Thurber's penstemon
Penstemon utahensis Eastw.
   Utah penstemon
Penstemon watsonii Gray
   Watson's penstemon
Sairocarpus kingii (S. Wats.) D.A. Sutton
   King's snapdragon
Scrophularia desertorum (Munz) R.J. Shaw
   desert figwort
Scrophularia lanceolata Pursh
   lanceleaf figwort
Synthyris ranunculina Pennell
   Charleston Mountain kittenstails
Verbascum blattaria L.
   moth mullein
Verbascum thapsus L.
   common mullein
Verbascum virgatum Stokes
   wand mullein
Veronica americana Schwein. ex Benth.
   American speedwell
Veronica anagallis-aquatica L.
   water speedwell
Veronica arvensis L.
   corn speedwell
Veronica beccabunga L.
   European speedwell
Veronica biloba L.
   twolobe speedwell
Veronica peregrina L.
   neckweed
Veronica persica Poir.
   birdeye speedwell
Veronica scutellata L.
   skullcap speedwell
Veronica serpyllifolia L.
   thymeleaf speedwell
Veronica wormskjoldii Roemer & J.A. Schultes
   American alpine speedwell

SELAGINELLACEAE
Selaginella densa Rydb.
   lesser spikemoss
Selaginella leucobryoides Maxon
   Mojave spikemoss
Selaginella selaginoides (L.) Beauv. ex Mart. & Schrank
   club spikemoss
Selaginella utahensis Flowers
   Utah spikemoss
Selaginella watsonii Underwood
   Watson's spikemoss

SOLANACEAE
Chamaesaracha nana (Gray) Gray
= Leucophysalis nana
Datura meteloides DC. ex Dunal
= Datura wrightii
Datura stramonium L.
   jimsonweed
Datura wrightii Regel
   sacred thornapple
Hyoscyamus niger L.
   black henbane
Leucophysalis nana (Gray) Averett
   dwarf chamaesaracha
Lycium andersonii Gray
   Anderson's wolfberry
Lycium barbarum L.
   matrimonyvine
Lycium cooperi Gray
   Cooper's wolfberry
Lycium pallidum Miers
   pale wolfberry
Lycium parishii Gray
   Parish's desertthorn
Lycium shockleyi Gray
   Shockley's desertthorn
Lycium torreyi Gray
   squawthorn
Lycopersicon esculentum P. Mill.
   garden tomato
Nicotiana acuminata (Graham) Hook.
   manyflower tobacco
Nicotiana attenuata Torr. ex S. Wats.
   coyote tobacco
Nicotiana glauca Graham
   tree tobacco
Nicotiana obtusifolia Mertens & Galeotti
Nicotiana quadrivalvis Pursh
   Indian tobacco
Nicotiana trigonophylla Dunal
= Nicotiana obtusifolia var. obtusifolia
Oryctes nevadensis S. Wats.
   Nevada oryctes
Physalis angulata L.
   cutleaf groundcherry
Physalis crassifolia Benth.
   yellow nightshade groundcherry
Physalis hederifolia Gray
   ivyleaf groundcherry
Physalis longifolia Nutt.
   longleaf groundcherry
Quincula lobata (Torr.) Raf.
   Chinese lantern
Solanum americanum P. Mill.
   American black nightshade
Solanum dulcamara L.
   climbing nightshade
Solanum elaeagnifolium Cav.
   silverleaf nightshade
Solanum physalifolium Rusby
   hoe nightshade
Solanum rostratum Dunal
   buffalobur nightshade
Solanum sarrachoides Sendtner
   nightshade
Solanum triflorum Nutt.
   cutleaf nightshade
Solanum xanti Gray
   purple nightshade
Solanum xanti var. montanum Munz
   chaparral nightshade

TAMARICACEAE
Tamarix aphylla (L.) Karst.
   Athel tamarisk
Tamarix chinensis Lour.
   fivestamen tamarisk
Tamarix parviflora DC.
   smallflower tamarisk
Tamarix ramosissima Ledeb.
   saltcedar

TAXACEAE
Taxus brevifolia Nutt.
   Pacific yew

ULMACEAE
Celtis laevigata Willd.
   sugarberry
Celtis laevigata var. reticulata (Torr.) L. Benson
   netleaf hackberry
Ulmus minor P. Mill.
   smoothleaf elm
Ulmus parvifolia Jacq.
   Chinese elm
Ulmus pumila L.
   Siberian elm

UMBELLIFERAE
Angelica arguta Nutt.
   Lyall's angelica
Angelica breweri Gray
   Brewer's angelica
Angelica kingii (S. Wats.) Coult. & Rose
   King's angelica
Angelica lineariloba Gray
   poison angelica
Angelica pinnata S. Wats.
   smallleaf angelica
Angelica scabrida Clokey & Mathias ex Clokey
   Charleston Mountain angelica
Apium graveolens L.
   wild celery
Apium graveolens var. dulce (P. Mill.) DC.
   wild celery
Berula erecta (Huds.) Coville
   cutleaf waterparsnip
Bowlesia incana Ruiz & Pavon
   hoary bowlesia
Ciclospermum leptophyllum (Pers.) Sprague ex Britt. & Wilson
   marsh parsley
Cicuta douglasii (DC.) Coult. & Rose
   western water hemlock
Cicuta maculata L.
   spotted water hemlock
Conium maculatum L.
   poison hemlock
Coriandrum sativum L.
   Chinese parsley
Cymopterus aboriginum M.E. Jones
   Indian springparsley
Cymopterus basalticus M.E. Jones
   basalt springparsley
Cymopterus cinerarius Gray
   gray springparsley
Cymopterus corrugatus M.E. Jones
   wrinklewing springparsley
Cymopterus gilmanii Morton
   Gilman's springparsley
Cymopterus globosus (S. Wats.) S. Wats.
   globe springparsley
Cymopterus goodrichii Welsh & Neese
   Toiyabe springparsley
Cymopterus ibapensis M.E. Jones
   Ibapah springparsley
Cymopterus jonesii Coult. & Rose
   Jones' springparsley
Cymopterus multinervatus (Coult. & Rose) Tidestrom
   purplenerve springparsley
Cymopterus nivalis S. Wats.
   snowline springparsley
Cymopterus purpurascens (Gray) M.E. Jones
   widewing springparsley
Cymopterus purpureus S. Wats.
   purple springparsley
Cymopterus ripleyi Barneby
   Ripley's springparsley
Daucus carota L.
   Queen Anne's lace
Eryngium alismifolium Greene
   Modoc eryngo
Foeniculum vulgare P. Mill.
   sweet fennel
Heracleum lanatum Michx.
= Heracleum maximum
Heracleum maximum Bartr.
   common cowparsnip
Hydrocotyle verticillata Thunb.
   whorled marshpennywort
Leptotaenia multifida Nutt.
= Lomatium dissectum var. multifidum
Ligusticum canbyi Coult. & Rose
   Canby's licoriceroot
Ligusticum grayi Coult. & Rose
   Gray's licoriceroot
Ligusticum porteri Coult. & Rose
   Porter's licoriceroot
Lomatium bicolor (S. Wats.) Coult. & Rose
   Wasatch desertparsley
Lomatium canbyi (Coult. & Rose) Coult. & Rose
   Canby's biscuitroot
Lomatium cous (S. Wats.) Coult. & Rose
   cous biscuitroot
Lomatium dissectum (Nutt.) Mathias & Constance
   fernleaf buscuitroot
Lomatium dissectum var. multifidum (Nutt.) Mathias & Constance
   carrotleaf biscuitroot
Lomatium donnellii (Coult. & Rose) Coult. & Rose
   Donnell's biscuitroot
Lomatium foeniculaceum (Nutt.) Coult. & Rose
   desert biscuitroot
Lomatium graveolens (S. Wats.) Dorn & Hartman
   king desertparsley
Lomatium grayi (Coult. & Rose) Coult. & Rose
   Gray's biscuitroot
Lomatium macrocarpum (Nutt. ex Torr. & Gray) Coult. & Rose
   bigseed biscuitroot
Lomatium mohavense (Coult. & Rose) Coult. & Rose
   Mojave desertparsley
Lomatium nevadense (S. Wats.) Coult. & Rose
   Nevada biscuitroot
Lomatium nudicaule (Pursh) Coult. & Rose
   barestem biscuitroot
Lomatium nuttallii (Gray) J.F. Macbr.
   Nuttall's biscuitroot
Lomatium parryi (S. Wats.) J.F. Macbr.
   Utah desertparsley
Lomatium plummerae (Coult. & Rose) Coult. & Rose
   Plummer's desertparsley
Lomatium plummerae var. sonnei (Coult. & Rose) Jepson
   Sonn's desertparsley
Lomatium ravenii Mathias & Constance
   Lassen parsley
Lomatium scabrum (Coult. & Rose) Mathias
   rough desertparsley
Lomatium simplex (Nutt.) J.F. Macbr.
   narrowleaf lomatium
Lomatium triternatum (Pursh) Coult. & Rose
   nineleaf biscuitroot
Lomatium vaginatum Coult. & Rose
   broadsheath desertparsley
Musineon divaricatum (Pursh) Raf.
   leafy wildparsley
Osmorhiza berteroi DC.
   sweetcicely
Osmorhiza depauperata Phil.
   bluntseed sweetroot
Osmorhiza occidentalis (Nutt. ex Torr. & Gray) Torr.
   western sweetroot
Pastinaca sativa L.
   wild parsnip
Perideridia bolanderi (Gray) A. Nels. & J.F. Macbr.
   Bolander's yampah
Perideridia gairdneri (Hook. & Arn.) Mathias
   yampa
Perideridia lemmonii (Coult. & Rose) Chuang & Constance
   Lemmon's yampah
Perideridia parishii (Coult. & Rose) A. Nels. & J.F. Macbr.
   Parish's yampah
Pseudocymopterus montanus (Gray) Coult. & Rose
   alpine false springparsley
Pteryxia hendersonii (Coult. & Rose) Mathias & Constance
   Henderson's desertparsley
Pteryxia petraea (M.E. Jones) Coult. & Rose
   rockloving desertparsley
Pteryxia terebinthina (Hook.) Coult. & Rose
   smoothshore springparsley
Sanicula graveolens Poepp. ex DC.
   northern sanicle
Sium suave Walt.
   hemlock waterparsnip
Sphenosciadium capitellatum Gray
   woollyhead parsnip
Yabea microcarpa (Hook. & Arn.) K.-Pol.
   falsecarrot
Zizia aptera (Gray) Fern.
   meadow zizia

URTICACEAE
Hesperocnide tenella Torr.
   western stingingnettle
Parietaria hespera Hinton
   rillita pellitory
Parietaria pensylvanica Muhl. ex Willd.
   Pennsylvania pellitory
Urtica dioica L.
   stinging nettle
Urtica dioica ssp. holosericea (Nutt.) Thorne
   stinging nettle

VALERIANACEAE
Plectritis macrocera Torr. & Gray
   longhorn plectritis
Plectritis macrocera ssp. grayi (Suksdorf) Morey
   Gray's seablush
Valeriana acutiloba Rydb.
   sharpleaf valerian
Valeriana acutiloba var. pubicarpa (Rydb.) Cronq.
   hairyfruit valerian
Valeriana californica Heller
   California valerian
Valeriana edulis Nutt. ex Torr. & Gray
   edible valerian
Valeriana occidentalis Heller
   western valerian

VERBENACEAE
Aloysia wrightii Heller ex Abrams
   Wright's beebrush
Glandularia gooddingii (Briq.) Solbrig
   southwestern mock vervain
Lippia wrightii Gray ex Torr.
= Aloysia wrightii
Phyla lanceolata (Michx.) Greene
   lanceleaf fogfruit
Phyla nodiflora (L.) Greene
   turkey tangle fogfruit
Verbena bracteata Lag. & Rodr.
   bigbract verbena
Verbena canescens Kunth
   gray vervain
Verbena carolina L.
   Carolina vervain
Verbena hastata L.
   swamp verbena
Verbena hastata var. scabra Moldenke
   swamp verbena
Verbena stricta Vent.
   oary verbena

VIOLACEAE
Viola adunca Sm.
   hookedspur violet
Viola affinis Le Conte
   sand violet
Viola bakeri Greene
   Baker's violet
Viola beckwithii Torr. & Gray
   Beckwith's violet
Viola charlestonensis M.S. Baker & J.C. Clausen ex Clokey
   Charleston Mountain violet
Viola macloskeyi Lloyd
   small white violet
Viola nephrophylla var. nephrophylla Greene
   northern bog violet
Viola palustris L.
   marsh violet
Viola praemorsa Dougl. ex Lindl.
   canary violet
Viola purpurea Kellogg
   goosefoot violet
Viola sororia Willd.
   common blue violet
Viola utahensis M.S. Baker & J.C. Clausen ex Baker
   Utah violet
Viola vallicola A. Nels.
   valley violet

VISCACEAE
Arceuthobium abietinum Engelm. ex Munz
   fir dwarf mistletoe
Arceuthobium americanum Nutt. ex Engelm.
   American dwarf mistletoe
Arceuthobium campylopodum Engelm.
   western dwarf mistletoe
Arceuthobium cyanocarpum (A. Nels. ex Rydb.) A. Nels.
   limber pine dwarf mistletoe
Arceuthobium divaricatum Engelm.
   pinyon dwarf mistletoe
Arceuthobium douglasii Engelm.
   Douglas fir dwarf mistletoe
Phoradendron californicum Nutt.
   mesquite mistletoe
Phoradendron juniperinum Engelm.
   juniper mistletoe

VITACEAE
Ampelopsis quinquefolia (L.) Michx.
= Parthenocissus quinquefolia var. quinquefolia
Parthenocissus quinquefolia (L.) Planch.
   Virginia creeper
Vitis arizonica Engelm.
   canyon grape

ZANNICHELLIACEAE
Zannichellia palustris L.
   horned pondweed

ZYGOPHYLLACEAE
Fagonia laevis Standl.
   California fagonbush
Kallstroemia californica (S. Wats.) Vail
   California caltrop
Kallstroemia parviflora J.B.S. Norton
   warty caltrop
Larrea tridentata (Sesse & Moc. ex DC.) Coville
   creosotebush
Peganum harmala L.
   syrian rue
Tribulus terrestris L.
   puncturevine
Zygophyllum fabago L.
   Syrian beancaper