Checklist of the vascular plants of NEW MEXICO (excluding grasses and their allies) ACANTHACEAE Anisacanthus thurberi (Torr.) Gray Thurber's desert honeysuckle Carlowrightia linearifolia (Torr.) Gray heath wrightwort Carlowrightia texana Henrickson & Daniel Texas wrightwort Carlowrightia torreyana Wasshausen Torrey's wrightwort Dicliptera resupinata (Vahl) Juss. Arizona foldwing Dyschoriste decumbens (Gray) Kuntze spreading snakeherb Dyschoriste linearis (Torr. & Gray) Kuntze polkadots Elytraria imbricata (Vahl) Pers. purple scalystem Justicia wrightii Gray Wright's waterwillow Ruellia metziae Tharp Metz's wild petunia Ruellia parryi Gray Parry's wild petunia Siphonoglossa pilosella (Nees) Torr. hairy tubetongue Stenandrium barbatum Torr. & Gray early shaggytuft Tetramerium nervosum Nees hairy fournwort ACERACEAE Acer glabrum Torr. Rocky Mountain maple Acer glabrum var. glabrum Torr. Rocky Mountain maple Acer glabrum var. neomexicanum (Greene) Kearney & Peebles New Mexico maple Acer grandidentatum Nutt. bigtooth maple Acer grandidentatum var. grandidentatum Nutt. bigtooth maple Acer grandidentatum var. sinuosum (Rehd.) Little canyon maple Acer negundo L. boxelder Acer negundo var. interius (Britt.) Sarg. boxelder maple Acer negundo var. texanum Pax ashleaf maple ADIANTACEAE Adiantum capillus-veneris L. common maidenhair Argyrochosma fendleri (Kunze) Windham Fendler's falsecloak fern Argyrochosma incana (K. Presl) Windham hairy falsecloak fern Argyrochosma limitanea (Maxon) Windham SW falsecloak fern Argyrochosma limitanea ssp. limitanea(Maxon)Windham SW fern Argyrochosma limitanea ssp. mexicana (Maxon) Windham SW falsecloak fern Argyrochosma microphylla (Mett. ex Kuhn) Windham smallleaf falsecloak fern Astrolepis X integerrima(Hook.)Benham & Windham hybrid cloakfern Astrolepis cochisensis (Goodding) Benham & Windham", Cochise scaly cloakfern Astrolepis cochisensisssp.cochisensis(Goodding)Benham & Windham, Cochise scaly cloakfern Astrolepis sinuata (Lag. ex Sw)Benham&Windham wavy scaly cloakfern Astrolepis sinuata ssp. sinuata (Lag. ex Sw.) Benham & Windham", wavy scaly cloakfern Bommeria hispida (Mett. ex Kuhn) Underwood copper fern Cheilanthes alabamensis (Buckl.) Kunze Alabama lipfern Cheilanthes bonariensis (Willd.) Proctor golden lipfern Cheilanthes eatonii Baker Eaton's lipfern Cheilanthes feei T. Moore slender lipfern Cheilanthes fendleri Hook. Fendler's lipfern Cheilanthes horridula Maxon rough lipfern Cheilanthes lanosa (Michx.) D.C. Eat. hairy lipfern Cheilanthes lindheimeri Hook. fairyswords Cheilanthes pringlei Davenport Pringle's lipfern Cheilanthes tomentosa Link woolly lipfern Cheilanthes villosa Davenport ex Maxon villous lipfern Cheilanthes wootonii Maxon beaded lipfern Cheilanthes wrightii Hook. Wright's lipfern Cryptogramma acrostichoides R. Br. American rockbrake Cryptogramma stelleri (Gmel.) Prantl fragile rockbrake Notholaena aschenborniana Klotzsch scaled cloak fern Notholaena grayi Davenport Gray's cloak fern Notholaena standleyi Maxon star cloak fern Pellaea atropurpurea (L.) Link purple cliffbrake Pellaea glabella Mett. ex Kuhn dwarf cliffbrake Pellaea glabella ssp. simplex (Butters) A.& D. Love smooth cliffbrake Pellaea intermedia Mett. ex Kuhn intermediate cliffbrake Pellaea mucronata (D.C. Eat.) D.C. Eat. birdfoot cliffbrake Pellaea mucronata ssp. mucronata (D.C. Eat.)=. birdfoot cliffbrake Pellaea ovata (Desv.) Weatherby ovateleaf cliffbrake Pellaea wrightiana Hook. Wright's cliffbrake Pentagrama triangularis(Kaulfuss)Yatskievych, Windham&Wollenweber western goldfern Pentagrama triangularis (Kaulfuss)Yatskievych,Windham&Wollenweber western goldfern ADOXACEAE Adoxa moschatellina L. muskroot AGAVACEAE Agave lechuguilla Torr. lechuguilla Agave neomexicana Woot. & Standl. New Mexico agave Agave palmeri Engelm. Palmer's century plant Agave parryi Engelm. Parry's agave Agave parryi var. parryi Engelm. Parry's agave Agave schottii Engelm. Schott's century plant Agave schottii var. schottii Engelm. Schott's century plant Dasylirion leiophyllum Engelm. ex Trel. green sotol Dasylirion wheeleri S. Wats. common sotol Nolina microcarpa S. Wats. sacahuista Nolina texana S. Wats. Texas sacahuista Yucca angustissima Engelm. ex Trel. narrowleaf yucca Yucca angustissima var. angustissima Engelm. ex Trel. fineleaf yucca Yucca baccata Torr. banana yucca Yucca baccata var. baccata Torr. banana yucca Yucca baccata var. brevifolia Spanish dagger Yucca baileyi Woot. & Standl. Navajo yucca Yucca baileyi var. baileyi Woot. & Standl. Bailey's yucca Yucca baileyi var. intermedia (McKelvey) Reveal intermediate yucca Yucca baileyi var. navajoa (J.M. Webber) J.M. Webber Navajo yucca Yucca campestris McKelvey plains yucca Yucca elata (Engelm.) Engelm. soaptree yucca Yucca elata var. elata (Engelm.) Engelm. soaptree yucca Yucca faxoniana (Trel.) Sarg. Eve's needle Yucca glauca Nutt. small soapweed Yucca glauca var. glauca Nutt. soapweed yucca Yucca glauca var. gurneyi McKelvey Gurney's yucca Yucca harrimaniae Trel. Spanish bayonet Yucca harrimaniae var. harrimaniae Trel. Harriman's Spanish bayonet Yucca harrimaniae var. neomexicana (Woot. & Standl.) Reveal", New Mexico Spanish bayonet Yucca schottii Engelm. Schott's yucca Yucca torreyi Shafer Torrey's yucca ALISMACEAE Alisma gramineum Lej. narrowleaf water plantain Alisma triviale Pursh northern water plantain Echinodorus berteroi (Spreng.) Fassett upright burrhead Sagittaria brevirostra Mackenzie & Bush shortbeak arrowhead Sagittaria calycina Engelm. hooded arrowhead Sagittaria calycina var. calycina Engelm. hooded arrowhead Sagittaria cuneata Sheldon arumleaf arrowhead Sagittaria graminea Michx. grassy arrowhead Sagittaria graminea var. graminea Michx. grassy arrowhead Sagittaria greggii J.G. Sm. Gregg's arrowhead Sagittaria latifolia Willd. broadleaf arrowhead Sagittaria longiloba Engelm. ex J.G. Sm. longbarb arrowhead AMARANTHACEAE Alternanthera pungens Kunth khakiweed Amaranthus acanthochiton Sauer greenstripe Amaranthus albus L. prostrate pigweed Amaranthus arenicola I.M. Johnston sandhill amaranth Amaranthus blitoides S. Wats. mat amaranth Amaranthus cruentus L. red amaranth Amaranthus fimbriatus (Torr.) Benth. ex S. Wats. fringed amaranth Amaranthus hybridus L. slim amaranth Amaranthus obcordatus (Gray) Standl. Trans-Pecos amaranth Amaranthus palmeri S. Wats. carelessweed Amaranthus powellii S. Wats. Powell's amaranth Amaranthus retroflexus L. redroot amaranth Amaranthus rudis Sauer tall amaranth Amaranthus viridis L. slender amaranth Amaranthus viscidulus Greene sticky amaranth Amaranthus wrightii S. Wats. Wright's amaranth Froelichia arizonica Thornb. ex Standl. Arizona snakecotton Froelichia floridana (Nutt.) Moq. plains snakecotton Froelichia floridana var. campestris (Small) Fern. plains snakecotton Froelichia gracilis (Hook.) Moq. slender snakecotton Froelichia interrupta (L.) Moq. Texas snakecotton Gomphrena caespitosa Torr. tufted globe amaranth Gomphrena nitida Rothrock pearly globe amaranth Gomphrena sonorae Torr. Sonoran globe amaranth Gossypianthus lanuginosus (Poir.) Moq. woolly cottonflower Guilleminea densa (Humb. & Bonpl. ex Willd.) Moq. small matweed Iresine heterophylla Standl. Standley's bloodleaf Tidestromia lanuginosa (Nutt.) Standl. woolly tidestromia Tidestromia suffruticosa (Torr.) Standl. shrubby honeysweet ANACARDACEAE Rhus aromatica = Rhus trilobata Rhus choriophylla Woot. & Standl. = Rhus virens var. choriophylla Rhus copallinum L. flameleaf sumac Rhus glabra L. smooth sumac Rhus lanceolata (Gray) Britt. prairie sumac Rhus microphylla Engelm. ex Gray littleleaf sumac Rhus radicans L. = Toxicodendron radicans ssp. radicans Rhus trilobata Nutt. Rhus trilobata var. anisophylla (Greene) Jepson Rhus trilobata var. pilosissima Engelm. Rhus trilobata var. quinata (Greene) Jepson Rhus trilobata var. racemulosa (Greene) Barkl. Rhus trilobata var. simplicifolia (Greene) Barkl. Rhus trilobata var. trilobata Nutt. skunkbush sumac Rhus virens Lindheimer ex Gray Rhus virens var. choriophylla (Woot. & Standl.) L. Benson", Rhus virens var. virens Lindheimer ex Gray evergreen sumac Toxicodendron radicans (L.) Kuntze Toxicodendron radicans ssp. radicans (L.) Kuntze eastern poison ivy Toxicodendron rydbergii (Small ex Rydb.) Greene western poison ivy APOCYNACEAE Amsonia fugatei S.P. McLaughlin San Antonio bluestar Amsonia hirtella Standl. = Amsonia palmeri Amsonia longiflora Torr. Amsonia longiflora var. longiflora Torr. Amsonia longiflora var. salpignantha (Woods.) S.P. McLaughlin tubular bluestar Amsonia palmeri Gray Palmer's bluestar Amsonia tharpii Woods. feltleaf bluestar Amsonia tomentosa Torr. & Frem. Amsonia tomentosa var. stenophylla Kearney & Peebles woolly bluestar Apocynum X floribundum Greene (pro sp.) intermediate dogbane Apocynum androsaemifolium L. spreading dogbane Apocynum cannabinum L. Indianhemp Apocynum medium Greene = Apocynum X floribundum Apocynum sibiricum Jacq. = Apocynum cannabinum Apocynum suksdorfii Greene = Apocynum cannabinum Haplophyton cimicidum A. DC. cockroachplant Macrosiphonia brachysiphon (Torr.) Gray Huachuca Mountain rocktrumpet ARALIACEAE Aralia humilis Cav. Arizona spikenard Aralia racemosa L. Aralia racemosa ssp. bicrenata (Woot. & Standl.) Welsh & Atwood American spikenard ARISTOLOCHIACEAE Aristolochia porphyrophylla H. Pfeifer = Aristolochia watsonii Aristolochia watsonii Woot. & Standl. Watson's dutchman's pipe Aristolochia wrightii Seem. Wright's dutchman's pipe ASCLEPIADACEAE Asclepias arenaria Torr. sand milkweed Asclepias asperula (Dcne.) Woods. Asclepias asperula ssp. asperula (Dcne.) Woods. Asclepias asperula ssp. capricornu (Woods.) Woods. antelopehorns Asclepias brachystephana Engelm. ex Torr. bract milkweed Asclepias capricornu Woods. Asclepias decumbens (Nutt.) Dcne. = Asclepias asperula ssp. capricornu Asclepias emoryi (Greene) Vail Emory's milkweed Asclepias engelmanniana Woods. Engelmann's milkweed Asclepias glaucescens Kunth nodding milkweed Asclepias hallii Gray Hall's milkweed Asclepias hypoleuca (Gray) Woods. mahogany milkweed Asclepias incarnata L. Asclepias incarnata ssp. incarnata L. swamp milkweed Asclepias involucrata Engelm. ex Torr. dwarf milkweed Asclepias latifolia (Torr.) Raf. broadleaf milkweed Asclepias linaria Cav. pineneedle milkweed Asclepias macrosperma Eastw. largeseed milkweed Asclepias macrotis Torr. longhood milkweed Asclepias nummularia Torr. tufted milkweed Asclepias nyctaginifolia Gray Mojave milkweed Asclepias oenotheroides Cham. & Schlecht. zizotes milkweed Asclepias pumila (Gray) Vail plains milkweed Asclepias quinquedentata Gray slimpod milkweed Asclepias rusbyi (Vail) Woods. Rusby's milkweed Asclepias sanjuanensis Heil, J.M. Porter & Welsh San Juan River milkweed Asclepias scaposa Vail Bear Mountain milkweed Asclepias speciosa Torr. showy milkweed Asclepias subverticillata (Gray) Vail whorled milkweed Asclepias tuberosa L. Asclepias tuberosa ssp. interior Woods. Asclepias tuberosa ssp. terminalis Woods. Asclepias tuberosa var. interior (Woods.) Shinners butterfly milkweed Asclepias uncialis Greene wheel milkweed Asclepias verticillata L. whorled milkweed Asclepias viridiflora Raf. green milkweed Asclepiodora decumbens (Nutt.) Gray = Asclepias asperula ssp. capricornu Cynanchum arizonicum (Gray) Shinners Arizona swallowwort Funastrum crispum (Benth.) Schlechter Funastrum cynanchoides (Dcne.) Schlechter Funastrum heterophyllum (Engelm. ex Torr.) Standl. Funastrum lineare (Dcne.) J.F. Macbr. = Sarcostemma sp Gonolobus productus Torr. = Matelea producta Matelea producta (Torr.) Woods. Texas milkvine Sarcostemma crispum Benth. wavyleaf twinevine Sarcostemma cynanchoides Dcne. Sarcostemma cynanchoides ssp. cynanchoides Dcne. fringed twinevine Sarcostemma cynanchoides ssp. hartwegii (Vail) R. Holm Hartweg's twinevine ASPLENIACEAE Asplenium palmeri Maxon Palmer's spleenwort Asplenium platyneuron (L.) B.S.P. ebony spleenwort Asplenium resiliens Kunze blackstem spleenwort Asplenium septentrionale (L.) Hoffmann forked spleenwort Asplenium trichomanes L. maidenhair spleenwort BERBERIDACEAE Berberis fendleri Gray Colorado barberry Berberis fremontii Torr. Berberis haematocarpa Woot. Berberis repens Lindl. Berberis trifoliata Moric. = Mahonia spp. Berberis wilcoxii Kearney Wilcox's barberry Mahonia fremontii (Torr.) Fedde Fremont's mahonia Mahonia haematocarpa (Woot.) Fedde red barberry Mahonia repens (Lindl.) G. Don Oregongrape Mahonia trifoliata (Moric.) Fedde algerita BETULACEAE Alnus incana (L.) Moench mountain alder Alnus incana ssp. tenuifolia (Nutt.) Breitung thinleaf alder Alnus oblongifolia Torr. Arizona alder Betula occidentalis Hook. water birch Ostrya knowltonii Coville Knowlton's hophornbeam BIGNONIACEAE Campsis radicans (L.) Seem. ex Bureau trumpet creeper Catalpa bignonioides Walt. southern catalpa Chilopsis linearis (Cav.) Sweet Chilopsis linearis ssp. arcuata (Fosberg) Henrickson Chilopsis linearis ssp. linearis (Cav.) Sweet desert willow Tecoma stans (L.) Juss. ex Kunth yellow trumpetbush BIXACEAE Amoreuxia palmatifida Moc. & Sesse ex DC. Mexican yellowshow BORAGINACEAE Amsinckia tessellata Gray Coldenia spp. = Tiquilia spp Cryptantha albida (Kunth) I.M. Johnston New Mexico catseye Cryptantha angustifolia (Torr.) Greene Panamint catseye Cryptantha bakeri (Greene) Payson Baker's catseye Cryptantha barbigera (Gray) Greene bearded catseye Cryptantha cinerea (Greene) Cronq. Cryptantha cinerea var. cinerea (Greene) Cronq. Cryptantha cinerea var. jamesii Cronq. Cryptantha cinerea var. laxa (J.F. Macbr.) Higgins Cryptantha cinerea var. pustulosa (Rydb.) Higgins James' catseye Cryptantha confertiflora (Greene) Payson Cryptantha crassisepala (Torr. & Gray) Greene Cryptantha crassisepala var. crassisepala (Torr. & Gray) Greene Cryptantha crassisepala var. elachantha I.M. Johnston thicksepal catseye Cryptantha fendleri (Gray) Greene sanddune catseye Cryptantha flava (A. Nels.) Payson Brenda's yellow catseye Cryptantha fulvocanescens (S. Wats.) Payson Cryptantha fulvocanescens var. echinoides (M.E. Jones) Higgins Cryptantha fulvocanescens var. fulvocanescens (S. Wats.) Payson tawny catseye Cryptantha gracilis Osterhout narrowstem catseye Cryptantha mexicana (Brandeg.) I.M. Johnston Mexican catseye Cryptantha micrantha (Torr.) I.M. Johnston Cryptantha micrantha var. micrantha (Torr.) I.M. Johnston redroot catseye Cryptantha minima Rydb. little catseye Cryptantha oblata (M.E. Jones) Payson rough catseye Cryptantha palmeri (Gray) Payson Palmer's catseye Cryptantha paradoxa (A. Nels.) Payson handsome catseye Cryptantha paysonii (J.F. Macbr.) I.M. Johnston Payson's catseye Cryptantha pterocarya (Torr.) Greene Cryptantha pterocarya var. cycloptera (Greene) J.F. Macbr. Cryptantha pterocarya var. pterocarya (Torr.) Greene wingnut catseye Cryptantha pusilla (Torr. & Gray) Greene low catseye Cryptantha recurvata Coville curvenut catseye Cryptantha setosissima (Gray) Payson bristly catseye Cryptantha thyrsiflora (Greene) Payson calcareous catseye Cynoglossum officinale L. gypsyflower Echium vulgare L. common vipersbugloss Eritrichium nanum (Vill.) Schrad. ex Gaudin Eritrichium nanum var. aretioides (Cham.) Herder alpine forget me not Hackelia besseyi (Rydb.) J.L. Gentry Bessey's stickseed Hackelia floribunda (Lehm.) I.M. Johnston manyflower stickseed Hackelia hirsuta (Woot. & Standl.) I.M. Johnston New Mexico stickseed Hackelia pinetorum (Greene ex Gray) I.M. Johnston Hackelia pinetorum var. jonesii J.L. Gentry Hackelia pinetorum var. pinetorum (Greene ex Gray) I.M. Johnston Livermore stickseed Hackelia ursina (Greene ex Gray) I.M. Johnston Hackelia ursina var. ursina (Greene ex Gray) I.M. Johnston Chihuahuan stickseed Lappula occidentalis (S. Wats.) Greene Lappula occidentalis var. cupulata (Gray) Higgins flatspine stickseed Lappula occidentalis var. occidentalis (S. Wats.) Greene desert stickseed Lithospermum cobrense Greene smooththroat gromwell Lithospermum confine I.M. Johnston Arizona gromwell Lithospermum incisum Lehm. narrowleaf gromwell Lithospermum multiflorum Torr. ex Gray manyflowered gromwell Lithospermum parksii I.M. Johnston Lithospermum parksii var. parksii I.M. Johnston Parks' gromwell Lithospermum viride Greene green gromwell Macromeria viridiflora DC. gianttrumpets Macromeria viridiflora var. thurberi (Gray) I.M. Johnston Thurber's gianttrumpets Mertensia alpina (Torr.) G. Don alpine bluebells Mertensia bakeri Greene Baker's bluebells Mertensia ciliata (James ex Torr.) G. Don mountain bluebells Mertensia ciliata var. ciliata (James ex Torr.) G. Don tall fringe bluebells Mertensia franciscana Heller Franciscan bluebells Mertensia lanceolata (Pursh) DC. Mertensia lanceolata var. lanceolata (Pursh) DC. prairie bluebells Mertensia lanceolata var. nivalis (S. Wats.) Higgins greenleaf bluebells Myosotis scorpioides L. true forget me not Myosotis stricta Link ex Roemer & J.A. Schultes strict forget me not Onosmodium molle Michx. smooth onosmodium Onosmodium molle ssp. occidentale (Mackenzie) Cochrane western onosmodium Pectocarya heterocarpa (I.M. Johnston) I.M. Johnston chuckwalla combseed Pectocarya platycarpa (Munz & Johnston) Munz & Johnston broadfruit combseed Pectocarya recurvata I.M. Johnston curvenut combseed Plagiobothrys arizonicus (Gray) Greene ex Gray Arizona popcornflower Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnston Scouler's popcornflower Plagiobothrys scouleri var. hispidulus (Greene) Dorn sleeping popcornflower Tiquilia canescens (DC.) A. Richards. woody crinklemat Tiquilia canescens var. canescens (DC.) A. Richards. gray coldenia Tiquilia gossypina (Woot. & Standl.) A. Richards. Texas crinklemat Tiquilia greggii (Torr. & Gray) A. Richards. plumed crinklemat Tiquilia hispidissima (Torr. & Gray) A. Richards. hairy coldenia Tiquilia latior (I.M. Johnston) A. Richards. matted crinklemat BUDLEJACEAE Buddleja scordioides Kunth escobilla butterflybush CACTACEAE Cereus greggii Engelm. = Peniocereus greggii var. greggii Coryphantha macromeris (Engelm.) Lem. Coryphantha macromeris var. macromeris (Engelm.) Lem. nipple beehive cactus Coryphantha scheeri (Muehlenpfordt) L. Benson Coryphantha scheeri var. scheeri (Muehlenpfordt) L. Benson Coryphantha scheeri var. uncinata L. Benson Coryphantha scheeri var. valida (Engelm.) L. Benson Scheer's beehive cactus Echinocactus horizonthalonius Lem. Echinocactus horizonthalonius var. horizonthalonius Lem. devilshead Echinocactus texensis Hopffer horse crippler Echinocereus X lloydii Britt. & Rose (pro sp.) Lloyd's hedgehog cactus Echinocereus chloranthus (Engelm.) Haage f. Echinocereus chloranthus var. chloranthus (Engelm.) Haage f. Echinocereus chloranthus var. cylindricus (Engelm.) N.P. Taylor brownspine hedgehog cactus Echinocereus coccineus Engelm. scarlet hedgehog cactus Echinocereus coccineus var. arizonicus (Rose ex Orcutt) Ferguson Arizona hedgehog cactus Echinocereus coccineus var. coccineus Engelm. scarlet hedgehog cactus Echinocereus coccineus var. gurneyi (L. Benson) Heil & Brack Gurney's hedgehog cactus Echinocereus enneacanthus var. brevispinus (W.O. Moore) L. Benson Echinocereus enneacanthus var. enneacanthus Engelm. pitaya Echinocereus fendleri (Engelm.) F. Seitz Echinocereus fendleri var. fasciculatus (Engelm.) N.P. Taylor Echinocereus fendleri var. rectispinus (Peebles) L. Benson pinkflower hedgehog cactus Echinocereus fendleri var. fendleri (Engelm.) F. Seitz Fendler's hedgehog cactus Echinocereus fendleri var.kuenzleri(Castett,Pierce&Schwerin)L.Benson Kuenzler's hedgehog cactus Echinocereus pectinatus (Scheidw.) Engelm. Echinocereus pectinatus var. dasyacanthus (Engelm.) N.P. Taylor rainbow cactus Echinocereus polyacanthus Engelm. Mojave mound cactus Echinocereus pseudopectinatus (N.P. Taylor) N.P. Taylor devilthorn Echinocereus reichenbachii (Terscheck ex Walp.) Haage f. lace hedgehog cactus Echinocereus reichenbachii var. baileyi (Rose) N.P. Taylor Bailey's hedgehog cactus Echinocereus reichenbachii var. perbellus (Britt. & Rose) L. Benson lace hedgehog cactus Echinocereus rigidissimus (Engelm.) Haage f. rainbow hedgehog cactus Echinocereus stramineus (Engelm.) F. Seitz strawberry hedgehog cactus Echinocereus triglochidiatus Engelm. Echinocereus triglochidiatus var. triglochidiatus Engelm. kingcup cactus Echinocereus viridiflorus Engelm. Echinocereus viridiflorus var. viridiflorus Engelm. nylon hedgehog cactus Epithelantha micromeris (Engelm.) A. Weber ex Britt. & Rose Epithelantha micromeris var.micromeris(Engelm.)A.WeberexBritt&Rose pingpong ball cactus Escobaria dasyacantha (Engelm.) Britt. & Rose Escobaria dasyacantha var. dasyacantha (Engelm.) Britt. & Rose Big Bend foxtail cactus Escobaria dasyacantha var. duncanii (Hester) N.P. Taylor Duncan's foxtail cactus Escobaria missouriensis (Sweet) D.R. Hunt Escobaria missouriensis var. missouriensis (Sweet) D.R. Hunt Missouri foxtail cactus Escobaria orcuttii Bodecker Orcutt's foxtail cactus Escobaria organensis (A.D. Zimmerman) Castetter, Pierce & Schwerin Organ Mountain foxtail cactus Escobaria sandbergii Castetter, Pierce & Schwerin San Andres Mountain foxtail cactus Escobaria sneedii Britt. & Rose Escobaria sneedii var. leei (Rose ex Bodecker) D.R. Hunt carpet foxtail cactus Escobaria sneedii var. sneedii Britt. & Rose Sneed's foxtail cactus Escobaria tuberculosa (Engelm.) Britt. & Rose whitecolumn foxtail cactus Escobaria villardii Castetter, Pierce & Schwerin Sacramento Mountain foxtail cactus Escobaria vivipara (Nutt.) Buxbaum spinystar Escobaria vivipara var. arizonica (Engelm.) D.R. Hunt Arizona spinystar Escobaria vivipara var. bisbeeana (Orcutt) D.R. Hunt Bisbee spinystar Escobaria vivipara var. neomexicana (Engelm.) Buxbaum New Mexico spinystar Escobaria vivipara var. radiosa (Engelm.) D.R. Hunt Escobaria vivipara var. vivipara (Nutt.) Buxbaum spinystar Ferocactus hamatacanthus (Muehlenpfordt) Britt. & Rose Ferocactus hamatacanthus var. hamatacanthus (Muehlenpfordt) Britt. &Rose turk's head Ferocactus wislizeni (Engelm.) Britt. & Rose candy barrelcactus Mammillaria grahamii Engelm. Mammillaria grahamii var. grahamii Engelm. Graham's nipple cactus Mammillaria heyderi Muehlenpfordt Mammillaria heyderi var. bullingtoniana Castetter, Pierce & Schwerin Mammillaria heyderi var. meiacantha (Engelm.) L. Benson little nipple cactus Mammillaria heyderi var. heyderi Muehlenpfordt Heyder's nipple cactus Mammillaria heyderi var. macdougalii (Rose) L. Benson Macdougal's nipple cactus Mammillaria lasiacantha Engelm. lacespine nipple cactus Mammillaria viridiflora (Britt. & Rose) Bodecker greenflower nipple cactus Mammillaria wrightii Engelm. Mammillaria wrightii var. wilcoxii (Toumey ex K. Schum.) W.T. Marsh. Mammillaria wrightii var. wrightii Engelm. Wright's nipple cactus Opuntia arenaria Engelm. El Paso pricklypear Opuntia chlorotica Engelm. & Bigelow dollarjoint pricklypear Opuntia clavata Engelm. club cholla Opuntia engelmannii Salm-Dyck Opuntia engelmannii var. cuija Griffiths & Hare Opuntia engelmannii var. engelmannii Salm-Dyck Opuntia engelmannii var. lindheimeri (Engelm.) Parfitt & Pinkava cactus apple, Texas pricklypear Opuntia erinacea Engelm. & Bigelow ex Engelm. Opuntia erinacea var. erinacea Engelm. & Bigelow ex Engelm. Opuntia erinacea var. hystricina (Engelm. & Bigelow) L. Benson grizzlybear pricklypear Opuntia erinacea var. utahensis (Engelm.) L. Benson Utah grizzlybear pricklypear Opuntia ficus-indica (L.) P. Mill. tuna cactus Opuntia fragilis (Nutt.) Haw. Opuntia fragilis var. brachyarthra (Engelm. & Bigelow) Coult. brittle pricklypear Opuntia fragilis var. fragilis (Nutt.) Haw. pygmy pricklypear Opuntia fulgida Engelm. Opuntia fulgida var. fulgida Engelm. jumping cholla Opuntia grahamii Engelm. Graham's pricklypear Opuntia humifusa var. humifusa (Raf.) Raf. pricklypear Opuntia imbricata (Haw.) DC. Opuntia imbricata var. imbricata (Haw.) DC. tree cholla Opuntia kleiniae DC. candle cholla Opuntia kunzei Rose devil's cholla Opuntia leptocaulis DC. Christmas cactus Opuntia macrocentra Engelm. purple pricklypear Opuntia macrocentra var. macrocentra Engelm. redjoint pricklypear Opuntia macrorhiza Engelm. Opuntia macrorhiza var. macrorhiza Engelm. Opuntia macrorhiza var. pottsii (Salm-Dyck) L. Benson twistspine pricklypear Opuntia phaeacantha Engelm. Opuntia phaeacantha var. camanchica (Engelm. & Bigelow) L. Benson Opuntia phaeacantha var. phaeacantha Engelm. tulip pricklypear Opuntia phaeacantha var. major Engelm. Mojave pricklypear Opuntia phaeacantha var. wootonii (Griffiths) L. Benson Wooton's pricklypear Opuntia polyacantha Haw. plains pricklypear Opuntia polyacantha var. juniperina (Britt. & Rose) L. Benson Juniper prickly-pear Opuntia polyacantha var. polyacantha Haw. hairspine pricklypear Opuntia polyacantha var.rufispina (Engelm. & Bigelow.) L. Benson Opuntia polyacantha var. trichophora (Engelm. & Bigelow) Coult. hairspine pricklypear Opuntia santa-rita (Griffiths & Hare) Rose Santa Rita pricklypear Opuntia schottii Engelm. dog cholla Opuntia spinosior (Engelm.) Toumey walkingstick cactus Opuntia tunicata (Lehm.) Link & Otto Opuntia tunicata var. davisii (Engelm. & Bigelow) L. Benson thistle cholla Opuntia versicolor Engelm. ex Coult. Opuntia versicolor var. violacea Engelm. ex Coult. staghorn cholla Opuntia viridiflora Britt. & Rose rattail cholla Opuntia whipplei Engelm. & Bigelow Opuntia whipplei var. whipplei Engelm. & Bigelow Whipple cholla Pediocactus knowltonii L. Benson Knowlton's miniature cactus Pediocactus simpsonii (Engelm.) Britt. & Rose Pediocactus simpsonii var. simpsonii (Engelm.) Britt. & Rose Simpson hedgehog cactus Pediocactus simpsonii var. minor (Engelm.) Cockerell snowball cactus Peniocereus greggii (Engelm.) Britt. & Rose Peniocereus greggii var. greggii (Engelm.) Britt. & Rose Peniocereus greggii var. transmontanus (Engelm.) Backeberg nightblooming cereus Sclerocactus erectocentrus (Coult.) N.P. Taylor redspine fishhook cactus Sclerocactus intertextus (Engelm.) N.P. Taylor Sclerocactus intertextus var. dasyacanthus (Engelm.) N.P. Taylor Sclerocactus intertextus var. intertextus (Engelm.) N.P. Taylor white fishhook cactus Sclerocactus mesae-verdae L. Benson", Mesa Verde fishhook cactus Sclerocactus papyracanthus (Engelm.) N.P. Taylor paperspine fishhook cactus Sclerocactus parviflorus Clover & Jotter smallflower fishhook cactus Sclerocactus parviflorus var. intermedius(Peebles)Woodruff&L.Benson intermediate fishhook cactus Sclerocactus parviflorus var. parviflorus Clover & Jotter smallflower fishhook cactus Sclerocactus uncinatus (Galeotti) N.P. Taylor Chihuahuan fishhook cactus Sclerocactus uncinatus var. wrightii (Engelm.) N.P. Taylor Wright's fishhook cactus Sclerocactus whipplei (Engelm. & Bigelow) Britt. & Rose Whipple's fishhook cactus Sclerocactus whipplei var. heilii Castetter, Pierce & Schwerin Heil's fishhook cactus Sclerocactus whipplei var. reevsii Castetter, Pierce & Schwerin Reeves' fishhook cactus CALLITRICHACEAE Callitriche hermaphroditica L. northern waterstarwort Callitriche heterophylla Pursh larger waterstarwort Callitriche heterophylla ssp. heterophylla Pursh twoheaded waterstarwort Callitriche palustris L. vernal waterstarwort CAMPANULACEAE Campanula parryi Gray Campanula parryi var. parryi Gray Parry's bellflower Campanula rapunculoides L. rampion bellflower Campanula rotundifolia L. bluebell bellflower Campanula uniflora L. arctic bellflower Lobelia anatina F. Wimmer Apache lobelia Lobelia cardinalis L. Lobelia cardinalis ssp. graminea (Lam.) McVaugh cardinalflower Lobelia fenestralis Cav. fringeleaf lobelia Nemacladus glanduliferus Jepson glandular threadplant Triodanis holzingeri McVaugh Holzinger's Venus' lookingglass Triodanis perfoliata (L.) Nieuwl. clasping Venus' lookingglass Triodanis perfoliata var. biflora (Ruiz & Pavon) Bradley Triodanis perfoliata var. perfoliata (L.) Nieuwl. clasping Venus' lookingglass CANNABINACEAE Cannabis sativa L. marijuana Humulus lupulus L. common hop Humulus lupulus var. neomexicanus A. Nels. & Cockerell common hop CAPPARIDACEAE Cleome lutea Hook. yellow spiderflower Cleome lutea var. lutea Hook. yellow spiderflower Cleome multicaulis DC. slender spiderflower Cleome serrulata Pursh Rocky Mountain beeplant Cleomella longipes Torr. Chiricahua Mountain stinkweed Koeberlinia spinosa Zucc. crown of thorns Polanisia dodecandra (L.) DC. roughseed clammyweed Polanisia dodecandra ssp. dodecandra (L.) DC. redwhisker clammyweed Polanisia dodecandra ssp. trachysperma (Torr. & Gray) Iltis sandyseed clammyweed Polanisia jamesii (Torr. & Gray) Iltis James' clammyweed Polanisia uniglandulosa (Cav.) DC. Mexican clammyweed Wislizenia refracta Engelm. jackass clover Wislizenia refracta ssp. refracta Engelm. spectacle fruit CAPRIFOLIACEAE Linnaea borealis L. Linnaea borealis ssp. longiflora (Torr.) Hulten twinflower Lonicera albiflora Torr. & Gray western white honeysuckle Lonicera arizonica Rehd. Arizona honeysuckle Lonicera involucrata Banks ex Spreng. twinberry honeysuckle Lonicera japonica Thunb. Japanese honeysuckle Lonicera utahensis S. Wats. Utah honeysuckle Sambucus cerulea Raf. blue elderberry Sambucus cerulea var. neomexicana (Woot.) Rehd. New Mexican elderberry Sambucus mexicana K. Presl ex DC. blue elder Sambucus racemosa L. scarlet elderberry Sambucus racemosa ssp. pubens (Michx.) House red elderberry Sambucus racemosa ssp. pubens var. leucocarpa (Torr. & Gray) Cronq. Sambucus racemosa ssp. pubens var. microbotrys(Rydb)Kearn& Peebles European red elderberry Sambucus racemosa ssp. pubens var. melanocarpa (Gray) McMinn black elderberry Symphoricarpos albus (L.) Blake Symphoricarpos albus var. albus (L.) Blake common snowberry Symphoricarpos longiflorus Gray desert snowberry Symphoricarpos microphyllus Kunth pink snowberry Symphoricarpos occidentalis Hook. western snowberry Symphoricarpos oreophilus Gray whortleleaf snowberry Symphoricarpos oreophilus var. oreophilus Gray mountain snowberry Symphoricarpos oreophilus var. utahensis (Rydb.) A. Nels. Utah snowberry Symphoricarpos palmeri G.N. Jones Palmer's snowberry Symphoricarpos rotundifolius Gray roundleaf snowberry CARYOPHYLLACEAE Agrostemma githago L. common corncockle Arenaria aculeata S. Wats. prickly sandwort Arenaria benthamii Fenzl ex Torr. & Gray hilly sandwort Arenaria eastwoodiae Rydb. Arenaria eastwoodiae var. adenophora Kearney & Peebles Arenaria eastwoodiae var. eastwoodiae Rydb. Eastwood's sandwort Arenaria fendleri Gray Arenaria fendleri var. brevifolia (Maguire) Maguire Arenaria fendleri var. fendleri Gray Fendler's sandwort Arenaria fendleri var. tweedyi (Rydb.) Maguire Tweedy's sandwort Arenaria franklinii Dougl. ex Hook. Arenaria franklinii var. franklinii Dougl. ex Hook. Franklin's sandwort Arenaria lanuginosa (Michx.) Rohrb. Arenaria lanuginosa ssp. saxosa (Gray) Maguire spreading sandwort Arenaria serpyllifolia L. thymeleaf sandwort Cerastium arvense L. field chickweed Cerastium beeringianum Cham. & Schlecht. Bering chickweed Cerastium brachypodum (Engelm. ex Gray) B.L. Robins. shortstalk chickweed Cerastium fontanum Baumg. common chickweed Cerastium fontanum ssp. vulgare (Hartman) Greuter & Burdet big chickweed Cerastium glomeratum Thuill. sticky chickweed Cerastium nutans Raf. Cerastium nutans var. nutans Raf. Cerastium nutans var. obtectum Kearney & Peebles nodding chickweed Cerastium texanum Britt. Texas chickweed Drymaria effusa Gray Drymaria effusa var. depressa (Greene) J. Duke pinewoods drymary Drymaria glandulosa K. Presl Fendler's drymary Drymaria laxiflora Benth. Trans Pecos drymary Drymaria leptophylla (Cham. & Schlecht.) Fenzl ex Rohrb. canyon drymary Drymaria molluginea (Lag.) Didr. slimleaf drymary Drymaria pachyphylla Woot. & Standl. thickleaf drymary Minuartia biflora (L.) Schinz & Thellung mountain stitchwort Minuartia michauxii (Fenzl) Farw. Michaux's stitchwort Minuartia michauxii var. texana (B.L. Robins.) Mattf. Texas stitchwort Minuartia obtusiloba (Rydb.) House twinflower sandwort Minuartia rubella (Wahlenb.) Hiern beautiful sandwort Moehringia lateriflora (L.) Fenzl bluntleaf sandwort Moehringia macrophylla (Hook.) Fenzl largeleaf sandwort Paronychia jamesii Torr. & Gray James' nailwort Paronychia lindheimeri Engelm. ex Gray forked nailwort Paronychia pulvinata Gray Rocky Mountain nailwort 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 Silene acaulis (L.) Jacq. Silene acaulis var. subacaulescens (F.N. Williams) Fern. & St. John moss campion Silene antirrhina L. sleepy silene Silene drummondii Hook. Silene drummondii var. drummondii Hook. Drummond's campion Silene laciniata Cav. Mexican campion Silene laciniata ssp. greggii (Gray) C.L. Hitchc. & Maguire Gregg's campion Silene menziesii Hook. Silene menziesii ssp. menziesii Hook. Silene menziesii ssp. menziesii var. menziesii Hook. Menzies' campion Silene noctiflora L. nightflowering silene Silene plankii C.L. Hitchc. & Maguire Plank's catchfly Silene scouleri Hook. Scouler's campion Silene scouleri ssp. pringlei (S. Wats.) C.L. Hitchc. & Maguire Silene scouleri ssp. pringlei var. grisea C.L. Hitchc. & Maguire Pringle's campion Silene thurberi S. Wats. woolly catchfly Silene wrightii Gray Wright's catchfly Spergularia maritima (All.) Chiov. media sandspurry Spergularia rubra (L.) J.& K. Presl red sandspurry Spergularia salina var. salina J.& K. Presl salt sandspurry Stellaria cuspidata Willd. ex Schlecht. Mexican starwort Stellaria irrigua Bunge Colorado starwort Stellaria longifolia Muhl. ex Willd. longleaf starwort Stellaria longipes Goldie Stellaria longipes ssp. 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 sempervirens Gray Rio Grande saddlebush Mortonia sempervirens ssp. scabrella (Gray) Prigge Rio Grande saddlebush Paxistima myrsinites (Pursh) Raf. boxleaf myrtle CHENOPODIACEAE Allenrolfea occidentalis (S. Wats.) Kuntze iodinebush Atriplex X neomexicana Standl. (pro sp.) New Mexico saltbush Atriplex acanthocarpa (Torr.) S. Wats. Atriplex acanthocarpa ssp. acanthocarpa (Torr.) S. Wats. tuburcled saltbush Atriplex argentea Nutt. Atriplex argentea ssp. argentea Nutt. Atriplex argentea ssp. argentea var. argentea Nutt. Atriplex argentea ssp. argentea var. caput-medusae (Eastw.) Fosberg Atriplex argentea ssp. expansa (S. Wats.) Hall & Clements silverscale saltbush Atriplex canescens (Pursh) Nutt. fourwing saltbush Atriplex confertifolia (Torr. & Frem.) S. Wats. shadscale saltbush Atriplex corrugata S. Wats. mat saltbush Atriplex cuneata A. Nels. Atriplex cuneata ssp. cuneata A. Nels. valley saltbush Atriplex elegans (Moq.) D. Dietr. wheelscale saltbush Atriplex griffithsii Standl. Griffiths' saltbush Atriplex hortensis L. garden orache Atriplex obovata Moq. mound saltbush Atriplex powellii S. Wats. Powell's saltweed Atriplex prostrata Boucher ex DC. triangle orache Atriplex rosea L. tumbling saltweed Atriplex saccaria S. Wats. sack saltbush Atriplex semibaccata R. Br. Australian saltbush Atriplex truncata (Torr. ex S. Wats.) Gray wedgescale saltbush Atriplex wrightii S. Wats. Wright's saltbush Bassia hyssopifolia (Pallas) Volk. fivehorn smotherweed Chenopodium albescens Small pale goosefoot Chenopodium album L. lambsquarters Chenopodium ambrosioides L. Chenopodium ambrosioides var. ambrosioides L. Mexican tea Chenopodium atrovirens Rydb. pinyon goosefoot Chenopodium berlandieri Moq. Chenopodium berlandieri var. berlandieri Moq. Berlandier's goosefoot Chenopodium berlandieri var. sinuatum (J. Murr) H.A. Wahl pitseed goosefoot Chenopodium berlandieri var. zschackii (J. Murr) J. Murr ex Aschers. Zschack's goosefoot Chenopodium botrys L. Jerusalem oak goosefoot Chenopodium capitatum (L.) Aschers. blite goosefoot Chenopodium cycloides A. Nels. sandhill goosefoot Chenopodium desiccatum A. Nels. aridland goosefoot Chenopodium fremontii S. Wats. Chenopodium fremontii var. fremontii S. Wats. Fremont's goosefoot Chenopodium glaucum L. oakleaf goosefoot Chenopodium graveolens Willd. fetid goosefoot Chenopodium hians Standl. hians goosefoot Chenopodium incanum (S. Wats.) Heller mealy goosefoot Chenopodium incanum var. elatum Crawford mealy goosefoot Chenopodium incanum var. incanum (S. Wats.) Heller mealy goosefoot Chenopodium leptophyllum (Moq.) Nutt. ex S. Wats. narrowleaf goosefoot Chenopodium murale L. nettleleaf goosefoot Chenopodium neomexicanum Standl. New Mexico goosefoot Chenopodium overi Aellen Over's goosefoot Chenopodium pallescens Standl. slimleaf goosefoot Chenopodium pratericola Rydb. desert goosefoot Chenopodium rubrum L. red goosefoot Chenopodium salinum Standl. Rocky Mountain goosefoot Chenopodium simplex (Torr.) Raf. mapleleaf goosefoot Chenopodium standleyanum Aellen Standley's goosefoot Chenopodium watsonii A. Nels. Watson's goosefoot Corispermum hyssopifolium L. common bugseed Corispermum orientale Lam. oriental bugseed Cycloloma atriplicifolium (Spreng.) Coult. winged pigweed Eurotia lanata (Pursh) Moq. = Krascheninnikovia lanata Halogeton glomeratus (Bieb.) C.A. Mey. halogeton Kochia americana S. Wats. greenmolly 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 Nitrophila occidentalis (Moq.) S. Wats. western miterwort Proatriplex pleiantha (W.A. Weber) Stutz & Chu Mancos shadscale Salicornia bigelovii Torr. dwarf saltwort Salicornia rubra A. Nels. red swampfire Salsola kali L. prickly Russian thistle Sarcobatus vermiculatus (Hook.) Torr. greasewood Sarcocornia utahensis (Tidestrom) A.J. Scott Utah swampfire Suaeda calceoliformis (Hook.) Moq. Pursh seepweed Suaeda moquinii (Torr.) Greene Mojave seablite Suaeda suffrutescens S. Wats. Suaeda suffrutescens var. detonsa I.M. Johnston Suaeda suffrutescens var. suffrutescens S. Wats. desert seepweed Suckleya suckleyana (Torr.) Rydb. poison suckleya Zuckia brandegei (Gray) Welsh & Stutz ex Welsh siltbush Zuckia brandegei var. brandegei (Gray) Welsh & Stutz ex Welsh Brandegee's siltbush Zuckia brandegei var. plummeri (Stutz & Sanderson) Dorn Plummer's siltbush CLUSIACEAE Hypericum formosum (Hook.) C.L. Hitchc. western St. Johnswort Hypericum perfoliatum St. Johnswort Hypericum scouleri Hook. Hypericum scouleri ssp. nortoniae (M.E. Jones) J. Gillett Norton's St. Johnswort Hypericum scouleri ssp. scouleri Hook. Scouler's St. Johnswort COMELLINACEAE Commelina dianthifolia Delile Commelina dianthifolia var. dianthifolia Delile Commelina dianthifolia var. longispatha (Torr.) Brashier birdbill dayflower Commelina erecta L. Commelina erecta var. angustifolia (Michx.) Fern. Commelina erecta var. deamiana Fern. Commelina erecta var. erecta L. whitemouth dayflower Tradescantia occidentalis (Britt.) Smyth Tradescantia occidentalis var. occidentalis (Britt.) Smyth prairie spiderwort Tradescantia pinetorum Greene pinewoods spiderwort Tradescantia wrightii Rose & Bush Wright's spiderwort COMPOSITAE Achillea millefolium L. Achillea millefolium var. alpicola (Rydb.) Garrett common yarrow Achillea millefolium var. occidentalis DC. western yarrow Acourtia nana (Gray) Reveal & King dwarf desertpeony Acourtia thurberi (Gray) Reveal & King Thurber's desertpeony Acourtia wrightii (Gray) Reveal & King brownfoot Acroptilon repens (L.) DC. hardheads Adenophyllum wrightii Gray Wright's dogweed Ageratina herbacea (Gray) King & H.E. Robins. fragrant snakeroot Ageratina rothrockii (Gray) King & H.E. Robins. Rothrock's snakeroot Ageratina wrightii (Gray) King & H.E. Robins. Wright's snakeroot Ageratum corymbosum Zuccagni flattop whiteweed Agoseris arizonica Greene Arizona mountain dandelion Agoseris aurantiaca (Hook.) Greene orange agoseris Agoseris aurantiaca var. aurantiaca (Hook.) Greene Agoseris aurantiaca var. purpurea (Gray) Cronq. orange agoseris Agoseris glauca (Pursh) Raf. Agoseris glauca var. agrestis (Osterhout) Q. Jones ex Cronq. Agoseris glauca var. glauca (Pursh) Raf. pale agoseris Agoseris glauca var. laciniata (D.C. Eat.) Smiley false agoseris Agoseris heterophylla (Nutt.) Greene annual agoseris Ambrosia acanthicarpa Hook. flatspine burr ragweed Ambrosia artemisiifolia L. annual ragweed Ambrosia confertiflora DC. weakleaf burr ragweed Ambrosia psilostachya DC. Cuman ragweed Ambrosia tomentosa Nutt. skeletonleaf burr ragweed Ambrosia trifida L. great ragweed Ambrosia trifida var. texana Scheele Texan great ragweed Ambrosia trifida var. trifida L. great ragweed Amphiachyris dracunculoides (DC.) Nutt. prairie broomweed Anaphalis margaritacea (L.) Benth. & Hook. f. western pearlyeverlasting Antennaria marginata Greene whitemargin pussytoes Antennaria microphylla Rydb. littleleaf pussytoes Antennaria parlinii ssp. fallax (Greene) Bayer & Stebbins Parlin's pussytoes Antennaria parvifolia Nutt. smallleaf pussytoes Antennaria rosea Greene Antennaria rosea ssp. arida (E. Nels.) Bayer rosy pussytoes Antennaria rosulata Rydb. Kaibab pussytoes Antennaria umbrinella Rydb. umber pussytoes Anthemis cotula L. stinking chamomile Antheropeas lanosum (Gray) Rydb. white easterbonnets Aphanostephus pilosus Buckl. hairy dozedaisy Aphanostephus ramosissimus DC. Aphanostephus ramosissimus var. humilis(Benth.)B.L.Turner-Birdsong Aphanostephus ramosissimus var. ramosissimus DC. plains dozedaisy Aphanostephus riddellii Torr. & Gray Riddell's dozedaisy Aphanostephus skirrhobasis (DC.) Trel. Aphanostephus skirrhobasis var. skirrhobasis (DC.) Trel. Arkansas dozedaisy Arctium minus Bernh. lesser burrdock Arnica chamissonis Less. Arnica chamissonis ssp. foliosa (Nutt.) Maguire Arnica chamissonis ssp. foliosa var. andina (Nutt.) Ediger & Barkl. chamisso arnica Arnica cordifolia Hook. heartleaf arnica Arnica latifolia Bong. broadleaf arnica Artemisia arbuscula Nutt. Artemisia arbuscula ssp. arbuscula Nutt. gray low sagebrush Artemisia biennis Willd. biennial wormwood Artemisia bigelovii Gray Bigelow's sagebrush Artemisia campestris L. field sagewort Artemisia campestris ssp. caudata (Michx.) Hall & Clements field wormwood Artemisia campestris ssp. pacifica (Nutt.) Hall & Clements Pacific wormwood Artemisia cana Pursh silver sagebrush Artemisia cana ssp. viscidula (Osterhout) Beetle Coaltown sagebrush Artemisia carruthii Wood ex Carruth. Carruth's sagewort Artemisia dracunculus L. wormwood Artemisia dracunculus ssp. dracunculus L. wormwood Artemisia filifolia Torr. sand sagebrush Artemisia franserioides Greene ragweed sagebrush Artemisia frigida Willd. fringed sagewort Artemisia ludoviciana Nutt. Artemisia ludoviciana ssp. albula (Woot.) Keck Artemisia ludoviciana ssp. ludoviciana Nutt. Artemisia ludoviciana ssp. mexicana (Willd. ex Spreng.) Keck Artemisia ludoviciana ssp. redolens (Gray) Keck Artemisia ludoviciana ssp. sulcata (Rydb.) Keck white sagebrush Artemisia nova A. Nels. black sagebrush Artemisia parryi Gray Parry's wormwood Artemisia pattersonii Gray Patterson's wormwood Artemisia scopulorum Gray alpine sagebrush Artemisia spinescens D.C. Eat. bud sagebrush Artemisia tridentata Nutt. big sagebrush Artemisia tridentata ssp. tridentata Nutt. basin big sagebrush Aster X bracteolatus Nutt. (pro sp.) bract aster Aster ascendens Lindl. Chile aster Aster eatonii (Gray) T.J. Howell Eaton's aster Aster ericoides L. Aster ericoides var. ericoides L. heath aster Aster falcatus Lindl. Aster falcatus var. commutatus (Torr. & Gray) A.G. Jones Aster falcatus var. crassulus (Rydb.) Cronq. Aster falcatus var. falcatus Lindl. cluster aster Aster fendleri Gray Fendler's aster Aster foliaceus Lindl. ex DC. alpine leafybract aster Aster foliaceus var. apricus Gray leafybract aster Aster foliaceus var. canbyi Gray Canby's aster Aster foliaceus var. parryi (D.C. Eat.) Gray Parry's aster Aster glaucodes Blake Aster glaucodes var. formosus (Greene) Kittell Aster glaucodes var. glaucodes Blake gray aster Aster laevis L. Aster laevis var. geyeri Gray Aster laevis var. guadalupensis A.G. Jones Aster laevis var. laevis L. smooth blue aster Aster lanceolatus Willd. white panicle aster Aster lanceolatus ssp. hesperius (Gray) Semple & Chmielewski Siskiyou aster Aster novae-angliae L. New England aster Aster oblongifolius Nutt. aromatic aster Aster occidentalis (Nutt.) Torr. & Gray western aster Aster pauciflorus Nutt. alkalimarsh aster Aster porteri Gray Porter's aster Aster praealtus Poir. Aster praealtus var. coerulescens (DC.) A.G. Jones willowleaf aster Aster subspicatus Nees Aster subspicatus var. subspicatus Nees Aster subulatus Michx. Aster subulatus var. ligulatus Shinners annual saltmarsh aster Baccharis bigelovii Gray Bigelow's falsewillow Baccharis brachyphylla Gray shortleaf baccharis Baccharis emoryi Gray Emory's baccharis Baccharis neglecta Britt. Rooseveltweed Baccharis pilularis DC. coyotebrush Baccharis pteronioides DC. yerba de pasmo Baccharis salicifolia (Ruiz & Pavon) Pers. mule's fat Baccharis salicina Torr. & Gray Great Plains falsewillow Baccharis sarothroides Gray desertbroom Baccharis texana (Torr. & Gray) Gray prairie falsewillow Baccharis thesioides Kunth Arizona baccharis Baccharis wrightii Gray Wright's baccharis Bahia absinthifolia Benth. Bahia absinthifolia var. absinthifolia Benth. blue lettuce""hairyseed bahia Bahia biternata Gray slimlobe bahia Bahia dissecta (Gray) Britt. ragleaf bahia Bahia pedata Gray bluntscale bahia Baileya multiradiata Harvey & Gray ex Gray desert marigold Baileya pleniradiata Harvey & Gray ex Gray woolly desert marigold Bartlettia scaposa Gray Bartlett daisy Bebbia juncea (Benth.) Greene Bebbia juncea var. aspera Greene sweetbush Berlandiera lyrata Benth. lyreleaf greeneyes Berlandiera texana DC. Texas greeneyes Bidens alba (L.) DC. romerillo Bidens bigelovii Gray Bigelow's beggarticks Bidens bipinnata L. spanish-needles Bidens cernua L. nodding beggartick Bidens frondosa L. devil's beggartick Bidens heterosperma Gray Rocky Mountain beggarticks Bidens laevis (L.) B.S.P. smooth beggartick Bidens lemmonii Gray Lemmon's beggarticks Bidens leptocephala Sherff fewflower beggarticks Bidens pilosa L. Spanish needles Bidens tenuisecta Gray slimlobe beggarticks Bidens tripartita L. threelobe beggarticks Brachyactis frondosa (Nutt.) A.G. Jones leafy rayless aster Brickellia baccharidea Gray resinleaf brickellbush Brickellia betonicifolia Gray betonyleaf brickellbush Brickellia brachyphylla (Gray) Gray plumed brickellbush Brickellia californica (Torr. & Gray) Gray California brickellbush Brickellia chenopodina (Greene) B.L. Robins. chenopod brickellbush Brickellia eupatorioides (L.) Shinners Brickellia eupatorioides var. chlorolepis (Woot. & Standl.) B.L. Turner Brickellia eupatorioides var. corymbulosa (Torr. & Gray) Shinners false boneset Brickellia fendleri Gray Fendler's brickellbush Brickellia floribunda Gray Chihuahuan brickellbush Brickellia grandiflora (Hook.) Nutt. tasselflower brickellbush Brickellia laciniata Gray splitleaf brickellbush Brickellia lemmonii Gray Brickellia lemmonii var. lemmonii Gray Brickellia lemmonii var. wootonii (Greene) B.L. Robins. Lemmon's brickellbush Brickellia microphylla (Nutt.) Gray littleleaf brickellbush Brickellia microphylla var. scabra Gray rough brickellbush Brickellia oblongifolia Nutt. Mojave brickellbush Brickellia oblongifolia var. linifolia (D.C. Eat.) B.L. Robins. narrowleaf brickellbush Brickellia rusbyi Gray stinking brickellbush Brickellia simplex Gray Sonoran brickellbush Brickellia squamulosa Gray Mule Mountain brickellbush Brickellia venosa (Woot. & Standl.) B.L. Robins. veiny brickellbush Cacalia decomposita Gray Maturique, = Psacalium decompositum Calycoseris wrightii Gray white tackstem Calyptocarpus vialis Less. straggler daisy Carduus nutans L. nodding plumeless thistle Carminatia tenuiflora DC. plumeweed Carphochaete bigelovii Gray Bigelow's bristlehead Carthamus tinctorius L. safflower Centaurea americana Nutt. American star thistle Centaurea biebersteinii DC. spotted knapweed Centaurea calcitrapa L. red star thistle Centaurea melitensis L. Maltese star thistle Centaurea rothrockii Greenm. Rothrock's knapweed Centaurea solstitialis L. yellow star thistle Chaenactis douglasii (Hook.) Hook. & Arn. Douglas' dustymaiden Chaenactis stevioides Hook. & Arn. Steve's dustymaiden Chaetopappa elegans Soreng & Spellenberg Sierra Blanca leastdaisy Chaetopappa ericoides (Torr.) Nesom rose heath Chaetopappa hersheyi Blake Guadalupe leastdaisy Chamaechaenactis scaposa (Eastw.) Rydb. Chamaechaenactis scaposa var. scaposa (Eastw.) Rydb. fullstem Chloracantha spinosa (Benth.) Nesom spiny chloracantha Chrysactinia mexicana Gray damianita Chrysothamnus depressus Nutt. longflower rabbitbrush Chrysothamnus greenei (Gray) Greene Greene's rabbitbrush Chrysothamnus linifolius Greene spearleaf rabbitbrush Chrysothamnus nauseosus (Pallas ex Pursh) Britt. Chrysothamnus nauseosus ssp. albicaulis (Nutt.) Hall & Clements Chrysothamnus nauseosus ssp. arenarius L.C. Anders. Chrysothamnus nauseosus ssp. bigelovii (Gray) Hall & Clements Chrysothamnus nauseosus ssp. consimilis (Greene) Hall & Clements Chrysothamnus nauseosus ssp. graveolens (Nutt.) Piper Chrysothamnus nauseosus ssp. hololeucus (Gray) Hall & Clements Chrysothamnus nauseosus ssp. junceus (Greene) Hall & Clements Chrysothamnus nauseosus ssp. latisquameus (Gray) Hall & Clements Chrysothamnus nauseosus ssp. nauseosus (Pallas ex Pursh) Britt. Chrysothamnus nauseosus ssp. nitidus L.C. Anders. rabbitbrush Chrysothamnus parryi (Gray) Greene Chrysothamnus parryi ssp. attenuatus (M.E. Jones) Hall & Clements Chrysothamnus parryi ssp. parryi (Gray) Greene Parry's rabbitbrush Chrysothamnus pulchellus (Gray) Greene Chrysothamnus pulchellus ssp. baileyi (Woot. & Standl.) Hall &Clements Chrysothamnus pulchellus ssp. pulchellus (Gray) Greene southwestern rabbitbrush Chrysothamnus spathulatus L.C. Anders. Guadalupe rabbitbrush Chrysothamnus vaseyi (Gray) Greene Vasey's rabbitbrush Chrysothamnus viscidiflorus (Hook.) Nutt. Chrysothamnus viscidiflorus ssp. lanceolatus (Nutt.) Hall & Clements Chrysothamnus viscidiflorus ssp. viscidiflorus (Hook.) Nutt. Chrysothamnus viscidiflorus ssp. viscidiflorus var. stenophyllus (Gray) Chrysothamnus viscidiflorus ssp. viscidiflorus var. viscidiflorus (Hook.) green rabbitbrush Cichorium intybus L. chicory Cirsium arizonicum (Gray) Petrak Arizona thistle Cirsium arvense (L.) Scop. Canadian thistle Cirsium calcareum (M.E. Jones) Woot. & Standl. Cainville thistle Cirsium canescens Nutt. prairie thistle Cirsium drummondii Torr. & Gray dwarf thistle Cirsium gilense Woot. & Standl. Gila thistle Cirsium grahamii Gray Graham's thistle Cirsium inornatum Woot. & Standl. cloudcroft thistle Cirsium neomexicanum Gray Cirsium neomexicanum var. neomexicanum Gray New Mexico thistle Cirsium ochrocentrum Gray yellowspine thistle Cirsium pallidum Woot. & Standl. pale thistle Cirsium parryi (Gray) Petrak Parry's thistle Cirsium scopulorum (Greene) Cockerell ex Daniels mountain thistle Cirsium tioganum (Congd.) Petrak stemless thistle Cirsium tioganum var. coloradense (Rydb.) Dorn Colorado thistle Cirsium tioganum var. tioganum (Congd.) Petrak Tioga thistle Cirsium undulatum (Nutt.) Spreng. wavyleaf thistle Cirsium undulatum var. megacephalum (Gray) Fern. wavyleaf thistle Cirsium vinaceum Woot. & Standl. Sacramento Mountain thistle Cirsium vulgare (Savi) Ten. bull thistle Cirsium wheeleri (Gray) Petrak Wheeler's thistle Cirsium wrightii Gray Wright's thistle Conyza canadensis (L.) Cronq. Conyza canadensis var. glabrata (Gray) Cronq. Canadian horseweed Conyza ramosissima Cronq. dwarf horseweed Coreopsis grandiflora Hogg ex Sweet largeflower tickseed Coreopsis lanceolata L. lanceleaf tickseed Coreopsis tinctoria Nutt. Coreopsis tinctoria var. tinctoria Nutt. golden tickseed Coreopsis wrightii (Gray) H.M. Parker rock tickseed Cosmos bipinnatus Cav. garden cosmos Cosmos parviflorus (Jacq.) Pers. southwestern cosmos Crepis acuminata Nutt. Crepis acuminata ssp. acuminata Nutt. Crepis acuminata ssp. pluriflora Babcock & Stebbins longleaf hawksbeard Crepis intermedia Gray limestone hawksbeard Crepis modocensis Greene Crepis modocensis ssp. modocensis Greene Modoc hawksbeard Crepis occidentalis Nutt. Crepis occidentalis ssp. costata (Gray) Babcock & Stebbins Crepis occidentalis ssp. occidentalis Nutt. Crepis runcinata (James) Torr. & Gray Crepis runcinata ssp. barberi (Greenm.) Babcock & Stebbins Crepis runcinata ssp. glauca (Nutt.) Babcock & Stebbins Crepis runcinata ssp. runcinata (James) Torr. & Gray fiddleleaf hawksbeard Dicoria brandegei Gray Brandegee's twinbugs Dicranocarpus parviflorus Gray pitchfork Dracopis amplexicaulis (Vahl) Cass. clasping coneflower Dugaldia hoopesii (Gray) Rydb. owlsclaws Dyssodia papposa (Vent.) A.S. Hitchc. fetid marigold Echinacea angustifolia DC. blacksamson echinacea Eclipta alba (L.) Hassk. = Eclipta prostrata Eclipta prostrata (L.) L. false daisy Encelia scaposa (Gray) Gray onehead brittlebush Encelia virginensis A. Nels. Encelia virginensis var. virginensis A. Nels. Virgin River brittlebush Engelmannia pinnatifida Gray ex Nutt. Engelmann's daisy Ericameria cuneata (Gray) McClatchie Ericameria cuneata var. spathulata (Gray) Hall cliff heathgoldenrod Ericameria laricifolia (Gray) Shinners turpentine bush Ericameria microcephala (Cronq.) Kartesz & Gandhi smallhead heathgoldenrod Erigeron acomanus Spellenberg & P. Knight bluewater fleabane Erigeron anchana Nesom Sierra Ancha fleabane Erigeron aphanactis (Gray) Greene Erigeron aphanactis var. aphanactis (Gray) Greene rayless shaggy fleabane Erigeron arisolius Nesom arid throne fleabane Erigeron arizonicus Gray Arizona fleabane Erigeron bellidiastrum Nutt. Erigeron bellidiastrum var. bellidiastrum Nutt. western daisy fleabane Erigeron bigelovii Gray Bigelow's fleabane Erigeron caespitosus Nutt. tufted fleabane Erigeron canus Gray hoary fleabane Erigeron colomexicanus A. Nels. running fleabane Erigeron concinnus (Hook. & Arn.) Torr. & Gray Erigeron concinnus var. concinnus (Hook. & Arn.) Torr. & Gray Erigeron concinnus var. condensatus D.C. Eat. Erigeron concinnus var. subglaber (Cronq.) Nesom Navajo fleabane Erigeron consimilis Cronq. foothill fleabane Erigeron coulteri Porter large mountain fleabane Erigeron divergens Torr. & Gray spreading fleabane Erigeron elatior (Gray) Greene tall fleabane Erigeron eximius Greene sprucefir fleabane Erigeron flagellaris Gray trailing fleabane Erigeron formosissimus Greene Erigeron formosissimus var. formosissimus Greene Erigeron formosissimus var. viscidus (Rydb.) Cronq. beautiful fleabane Erigeron glabellus Nutt. streamside fleabane Erigeron heliographis Nesom Heliograph Peak fleabane Erigeron hessii Nesom Hess' fleabane Erigeron leiomerus Gray rockslide yellow fleabane Erigeron melanocephalus (A. Nels.) A. Nels. blackhead fleabane Erigeron modestus Gray plains fleabane Erigeron neomexicanus Gray New Mexico fleabane Erigeron peregrinus (Banks ex Pursh) Greene Erigeron peregrinus ssp. callianthemus (Greene) Cronq. Erigeron peregrinus ssp. callianthemus var.callianthemus(Greene)Cronq subalpine fleabane Erigeron philadelphicus L. Philadelphia fleabane Erigeron pinnatisectus (Gray) A. Nels. featherleaf fleabane Erigeron pulcherrimus Heller Erigeron pulcherrimus var. pulcherrimus Heller basin fleabane Erigeron pulcherrimus var. wyomingia (Rydb.) Cronq. Wyoming fleabane Erigeron rhizomatus Cronq. rhizome fleabane Erigeron rybius Nesom royal fleabane Erigeron scopulinus Nesom & Roth Winn Falls fleabane Erigeron simplex Greene onestem fleabane Erigeron speciosus (Lindl.) DC. Erigeron speciosus var. macranthus (Nutt.) Cronq. Erigeron speciosus var. speciosus (Lindl.) DC. aspen fleabane Erigeron subglaber Cronq. hairless fleabane Erigeron subtrinervis Rydb. ex Porter & Britt. Erigeron subtrinervis var. subtrinervis Rydb. ex Porter & Britt. threenerve fleabane Erigeron uniflorus L. Erigeron uniflorus ssp. eriocephalus (J. Vahl) Cronq. oneflower fleabane Erigeron ursinus D.C. Eat. Bear River fleabane Erigeron utahensis Gray Erigeron utahensis var. sparsifolius (Eastw.) Cronq. Utah fleabane Erigeron vetensis Rydb. early bluetop fleabane Erigeron vreelandii Greene Vreeland's erigeron Eupatorium greggii Gray palmleaf thoroughwort Eupatorium maculatum L. spotted joepyeweed Eupatorium solidaginifolium Gray shrubby thoroughwort Euthamia graminifolia (L.) Nutt. flattop goldentop Euthamia occidentalis Nutt. western goldentop Evax prolifera Nutt. ex DC. bighead pygmycudweed Evax verna Raf. spring pygmycudweed Evax verna var. verna Raf. spring pygmycudweed Flaveria campestris J.R. Johnston alkali yellowtops Flaveria chlorifolia Gray clasping yellowtops Flaveria trinervia (Spreng.) C. Mohr clustered yellowtops Flourensia cernua DC. American tarwort Flourensia pringlei (Gray) Blake Pringle's tarwort Gaillardia aristata Pursh common gaillardia Gaillardia pinnatifida Torr. red dome blanketflower Gaillardia pulchella Foug. Gaillardia pulchella var. pulchella Foug. firewheel Galinsoga parviflora Cav. gallantsoldier Galinsoga quadriradiata Ruiz & Pavon shaggysoldier Gnaphalium canescens DC. Wright's cudweed Gnaphalium grayi A. Nels. & J.F. Macbr. Gray's cudweed Gnaphalium palustre Nutt. western marsh cudweed Gnaphalium pringlei Gray Pringle's cudweed Gnaphalium stramineum Kunth cottonbatting plant Gnaphalium viscosum Kunth winged cudweed Grindelia acutifolia Steyermark sharpleaf gumweed Grindelia arizonica Gray Arizona gumweed Grindelia arizonica var. arizonica Gray Grindelia arizonica var. neomexicana (Woot. & Standl.) Nesom Grindelia arizonica var. stenophylla Steyermark Arizona gumweed Grindelia decumbens Greene Grindelia decumbens var. subincisa (Greene) Steyermark reclined gumweed Grindelia havardii Steyermark Havard's gumweed Grindelia nuda Wood Grindelia nuda var. aphanactis (Rydb.) Nesom Grindelia nuda var. nuda Wood curlytop gumweed Grindelia revoluta Steyermark rolled gumweed Grindelia scabra Greene rough gumweed Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa var. serrulata (Rydb.) Steyermark Grindelia squarrosa var. squarrosa (Pursh) Dunal curlycup gumweed Gutierrezia microcephala (DC.) Gray threadleaf snakeweed Gutierrezia sarothrae (Pursh) Britt. & Rusby broom snakeweed Gutierrezia sphaerocephala Gray roundleaf snakeweed Gutierrezia texana (DC.) Torr. & Gray Texas snakeweed Gutierrezia texana var. glutinosa (S. Schauer) M.A. Lane sticky snakeweed Gutierrezia wrightii Gray Wright's snakeweed Gymnosperma glutinosum (Spreng.) Less. gumhead Haploesthes greggii Gray falsebroomweed Haploesthes greggii var. texana (Coult.) I.M. Johnston Texas falsebroomweed Helenium microcephalum DC. littlehead tarweed Helenium microcephalum var. microcephalum DC. smallhead sneezeweed Helianthella microcephala (Gray) Gray purpledisk helianthella Helianthella parryi Gray Parry's dwarfsunflower Helianthella quinquenervis (Hook.) Gray fivenerve helianthella Helianthella uniflora (Nutt.) Torr. & Gray oneflower helianthella Helianthus neglectus Heiser neglected sunflower Helianthus niveus (Benth.) Brandeg. Helianthus niveus ssp. canescens (Gray) Heiser showy sunflower Helianthus nuttallii Torr. & Gray Helianthus nuttallii ssp. nuttallii Torr. & Gray Nuttall's sunflower Helianthus paradoxus Heiser paradox sunflower Helianthus pauciflorus Nutt. Helianthus pauciflorus ssp. pauciflorus Nutt. Helianthus pauciflorus ssp. subrhomboideus (Rydb.) E. Schilling stiff sunflower Helianthus petiolaris Nutt. Helianthus petiolaris ssp. fallax Heiser Helianthus petiolaris ssp. petiolaris Nutt. prairie sunflower Heliomeris multiflora Nutt. Heliomeris multiflora var. brevifolia (Greene) Yates Heliomeris multiflora var. multiflora Nutt. showy goldeneye Heliomeris multiflora var. nevadensis (A. Nels.) Yates Nevada goldeneye Heliopsis parvifolia Gray mountain oxeye Heterosperma pinnatum Cav. wingpetal Heterotheca stenophylla (Gray) Shinners stiffleaf falsegoldenaster Heterotheca subaxillaris (Lam.) Britt. & Rusby camphorweed Heterotheca villosa (Pursh) Shinners Heterotheca villosa var. hispida (Hook.) Harms Heterotheca villosa var. villosa (Pursh) Shinners hairy goldenaster Heterotheca viscida (Gray) Harms cliff falsegoldenaster Hieracium carneum Greene Huachuca hawkweed Hieracium fendleri Schultz-Bip. yellow hawkweed Hieracium fendleri var. fendleri Schultz-Bip. Fendler's hawkweed Hieracium fendleri var. mogollense Gray Mogollon hawkweed Hieracium gracile Hook. slender hawkweed Hieracium lemmonii Gray Lemmon's hawkweed Hieracium pringlei Gray Pringle's hawkweed Hieracium rusbyi Greene Rusby's hawkweed Hymenoclea monogyra Torr. & Gray ex Gray singlewhorl burrobush Hymenopappus biennis B.L. Turner biennial woollywhite Hymenopappus filifolius Hook. Hymenopappus filifolius var. cinereus (Rydb.) I.M. Johnston Hymenopappus filifolius var. lugens (Greene) Jepson Hymenopappus filifolius var. megacephalus B.L. Turner Hymenopappus filifolius var. pauciflorus (I.M. Johnston) B.L. Turner fineleaf hymenopappus Hymenopappus filifolius var. polycephalus (Osterhout) B.L. Turner manyhead hymenopappus Hymenopappus flavescens Gray Hymenopappus flavescens var. canotomentosus Gray Hymenopappus flavescens var. flavescens Gray collegeflower Hymenopappus mexicanus Gray Mexican woollywhite Hymenopappus newberryi (Gray) I.M. Johnston Newberry's hymenopappus Hymenopappus radiatus Rose ray hymenopappus Hymenopappus tenuifolius Pursh Chalk Hill hymenopappus Hymenothrix wislizeni Gray TransPecos thimblehead Hymenothrix wrightii Gray Wright's thimblehead Hymenoxys bigelovii (Gray) Parker Bigelow's rubberweed Hymenoxys brachyactis Woot. & Standl. East View rubberweed Hymenoxys helenioides (Rydb.) Cockerell Intermountain hymenoxys Hymenoxys odorata DC. bitter rubberweed Hymenoxys quinquesquamata Rydb. rincon rubberweed Hymenoxys richardsonii (Hook.) Cockerell pingue hymenoxys Hymenoxys richardsonii var. floribunda (Gray) Parker Colorado rubberweed Hymenoxys richardsonii var. richardsonii (Hook.) Cockerell pingue hymenoxys Hymenoxys rusbyi (Gray) Cockerell Rusby's rubberweed Hymenoxys vaseyi (Gray) Cockerell Vasey's rubberweed Isocoma drummondii (Torr. & Gray) Greene Drummond's jimmyweed Isocoma pluriflora (Torr. & Gray) Greene southern jimmyweed Isocoma tenuisecta Greene burroweed Iva acerosa (Nutt.) R.C. Jackson copperweed Iva ambrosiifolia (Gray) Gray ragged marshelder Iva annua L. annual marshelder Iva axillaris Pursh povertyweed Iva dealbata Gray woolly marshelder Iva xanthifolia Nutt. giant sumpweed Jefea brevifolia (Gray) Stother shortleaf jefea Krigia biflora (Walt.) Blake twoflower dwarfdandelion Lactuca canadensis L. Canada lettuce Lactuca graminifolia Michx. Lactuca graminifolia var. arizonica McVaugh grassleaf lettuce Lactuca ludoviciana (Nutt.) Riddell biannual lettuce Lactuca pulchella (Pursh) DC. blue lettuce Lactuca saligna L. willowleaf lettuce Lactuca serriola L. prickly lettuce Lactuca tatarica (L.) C.A. Mey. blue lettuce Lactuca tatarica var. pulchella (Pursh) Breitung blue lettuce Laennecia coulteri (Gray) Nesom conyza Laennecia schiedeana (Less.) Nesom pineland marshtail Laennecia sophiifolia (Kunth) Nesom leafy marshtail Lasianthaea podocephala (Gray) K. Becker San Pedro daisy Lasthenia californica DC. ex Lindl. California goldfields Layia glandulosa (Hook.) Hook. & Arn. whitedaisy tidytips Layia glandulosa ssp. glandulosa (Hook.) Hook. & Arn. whitedaisy tidytips Leibnitzia seemannii (Schultz-Bip.) Nesom Seeman's sunbonnets Lepidospartum burgessii B.L. Turner Burgess' broomsage Leucanthemum vulgare Lam. oxeyedaisy Liatris lancifolia (Greene) Kittell lanceleaf gayfeather Liatris ligulistylis (A. Nels.) K. Schum. Rocky Mountain gayfeather Liatris punctata Hook. Liatris punctata var. nebraskana Gaiser Liatris punctata var. punctata Hook. dotted gayfeather Lygodesmia arizonica S. Tomb Arizona skeletonplant Lygodesmia grandiflora (Nutt.) Torr. & Gray largeflower skeletonplant Lygodesmia juncea (Pursh) D. Don ex Hook. rush skeletonplant Lygodesmia ramosissima Greenm. Pecos River skeletonplant Lygodesmia texana (Torr. & Gray) Greene Texas skeletonplant Machaeranthera asteroides (Torr.) Greene Machaeranthera asteroides var. asteroides (Torr.) Greene Machaeranthera asteroides var. glandulosa B.L. Turner New Mexico tansyaster Machaeranthera bigelovii (Gray) Greene Machaeranthera bigelovii var. bigelovii (Gray) Greene Bigelow's tansyaster Machaeranthera blephariphylla (Gray) Shinners Texas tansyaster Machaeranthera boltoniae (Greene) B.L. Turner & Horne Bolton's tansyaster Machaeranthera canescens (Pursh) Gray Machaeranthera canescens ssp. canescens (Pursh) Gray Machaeranthera canescens ssp. canescens var. ambigua B.L. Turner Machaeranthera canescens ssp. canescens var. canescens (Pursh) Gray Machaeranthera canescens ssp. canescens var. incana (Lindl.) Gray Machaeranthera canescens ssp. glabra (Gray) B.L. Turner Machaeranthera canescens ssp. glabra var. aristata (Eastw.) B.L.Turner Machaeranthera canescens ssp. glabra var. glabra Gray hoary tansyaster Machaeranthera gracilis (Nutt.) Shinners slender goldenweed Machaeranthera grindelioides (Nutt.) Shinners Machaeranthera grindelioides var. grindelioides (Nutt.) Shinners rayless aster Machaeranthera gypsitherma Nesom, Vorobik & Hartman La Playa Springs tansyaster Machaeranthera parviflora Gray smallflower tansyaster Machaeranthera pinnatifida (Hook.) Shinners Machaeranthera pinnatifida ssp. pinnatifida (Hook.) Shinners lacy tansyaster Machaeranthera pruinosa Gray Chiricahua Mountain tansyaster Machaeranthera tagetina Greene mesa tansyaster Machaeranthera tanacetifolia (Kunth) Nees tanseyleaf aster Machaeranthera viscida (Woot. & Standl.) R.L. Hartman sticky tansyaster Madia glomerata Hook. mountain tarweed Malacothrix fendleri Gray Fendler's desertdandelion Malacothrix sonchoides (Nutt.) Torr. & Gray sowthistle desertdandelion Malacothrix sonorae W.S. Davis & Raven Sonoran desertdandelion Matricaria discoidea DC. disc mayweed Matricaria recutita L. mayweed Melampodium leucanthum Torr. & Gray plains blackfoot Microseris lindleyi (DC.) Gray threadleaf microseris Nicolletia edwardsii Gray Edwards' hole in the sand plant Nothocalais cuspidata (Pursh) Greene sharppoint microseris Palafoxia rosea (Bush) Cory rosy palafox Palafoxia rosea var. macrolepis (Rydb.) B.L. Turner & Morris rosy palafox Palafoxia sphacelata (Nutt. ex Torr.) Cory othake Parthenice mollis Gray annual monsterwort Parthenium alpinum (Nutt.) Torr. & Gray alpine feverfew Parthenium confertum Gray Gray's feverfew Parthenium confertum var. lyratum (Gray) Rollins Gray's feverfew Parthenium incanum Kunth mariola Pectis angustifolia Torr. Pectis angustifolia var. angustifolia Torr. lemonscent Pectis cylindrica (Fern.) Rydb. Sonoran cinchweed Pectis filipes Harvey & Gray Pectis filipes var. subnuda Fern. fivebract cinchweed Pectis longipes Gray longstalk cinchweed Pectis papposa Harvey & Gray cinchweed fetidmarigold Pectis prostrata Cav. spreading cinchweed Pericome caudata Gray mountain leaftail Perityle cernua (Greene) Shinners nodding rockdaisy Perityle coronopifolia Gray Arizona rockdaisy Perityle dissecta (Torr.) Gray dissected rockdaisy Perityle lemmonii (Gray) J.F. Macbr. Lemmon's rockdaisy Perityle quinqueflora (Steyermark) Shinners fiveflower rockdaisy Perityle staurophylla (Barneby) Shinners Perityle staurophylla var. homoflora T.K. Todsen Perityle staurophylla var. staurophylla (Barneby) Shinners New Mexico rockdaisy Petradoria pumila (Nutt.) Greene Petradoria pumila ssp. graminea (Woot. & Standl.) L.C. Anders. Petradoria pumila ssp. pumila (Nutt.) Greene grassy rockgoldenrod Picradeniopsis oppositifolia (Nutt.) Rydb. ex Britt. oppositeleaf bahia Picradeniopsis woodhousei (Gray) Rydb. Woodhouse's bahia Pinaropappus parvus Blake small rocklettuce Pinaropappus roseus (Less.) Less. white rocklettuce Pinaropappus roseus var. foliosus (Heller) Shinners white rocklettuce Pinaropappus roseus var. roseus (Less.) Less. white rocklettuce Platyschkuhria integrifolia (Gray) Rydb. oblongleaf bahia Platyschkuhria integrifolia var. oblongifolia (Gray) W. Ellison basindaisy Pluchea odorata (L.) Cass. sweetscent Pluchea odorata var. odorata (L.) Cass. sweetscent Pluchea sericea (Nutt.) Cav. arrowweed Plummera ambigens Blake Pinaleno Mountain false rubbervine Porophyllum gracile Benth. slender poreleaf Porophyllum ruderale (Jacq.) Cass. Porophyllum ruderale ssp. macrocephalum (DC.) R.R. Johnson yerba porosa Porophyllum scoparium Gray TransPecos poreleaf Prenanthella exigua (Gray) Rydb. brightwhite Prionopsis ciliata (Nutt.) Nutt. Spanishgold Psacalium decompositum (Gray) H.E. Robins. & Brett. psacalium Psathyrotes scaposa Gray naked turtleback Pseudoclappia arenaria Rydb. TransPecos false clapdaisy Psilostrophe cooperi (Gray) Greene whitestem paperflower Psilostrophe tagetina (Nutt.) Greene Psilostrophe tagetina var. cerifera (A. Nels.) B.L. Turner Psilostrophe tagetina var. tagetina (Nutt.) Greene woolly paperflower Pyrrhopappus grandiflorus (Nutt.) Nutt. tuberous desertchicory Pyrrhopappus pauciflorus (D. Don) DC. desertchicory Pyrrocoma crocea (Gray) Greene curlyhead goldenweed Rafinesquia neomexicana Gray New Mexico plumseed Ratibida columnifera (Nutt.) Woot. & Standl. upright prairie coneflower Ratibida tagetes (James) Barnh. green prairie coneflower Rudbeckia hirta L. blackeyed Susan Rudbeckia laciniata L. cutleaf coneflower Rudbeckia laciniata var. ampla (A. Nels.) Cronq. cutleaf coneflower Sanvitalia abertii Gray Albert's creeping zinnia Sartwellia flaveriae Gray threadleaf glowwort Schkuhria anthemoidea (DC.) Coult. Schkuhria anthemoidea var. wrightii (Gray) Heiser Wright's false threadleaf Schkuhria multiflora Hook. & Arn. manyflower false threadleaf Schkuhria wislizeni Gray Schkuhria wislizeni var. frustrata Blake Wislizenus' false threadleaf Senecio actinella Greene Flagstaff ragwort Senecio amplectens Gray showy alpine groundsel Senecio amplectens var. holmii (Greene) Harrington Holm's ragwort Senecio arizonicus Greene Arizona ragwort Senecio atratus Greene tall blacktip ragwort Senecio bigelovii Gray nodding ragwort Senecio bigelovii var. bigelovii Gray Biglow's ragwort Senecio bigelovii var. hallii Gray Hall's ragwort Senecio canus Hook. woolly groundsel Senecio cardamine Greene bittercress ragwort Senecio crassulus Gray thickleaf groundsel Senecio cymbalarioides Buek cleftleaf groundsel Senecio cynthioides Greene White Mountain ragwort Senecio dimorphophyllus Greene Senecio dimorphophyllus var. dimorphophyllus Greene splitleaf groundsel Senecio eremophilus Richards. desert groundsel Senecio eremophilus var. macdougalii (Heller) Cronq. MacDougal's groundsel Senecio fendleri Gray Fendler's ragwort Senecio flaccidus Less. threadleaf ragwort Senecio flaccidus var. douglasii (DC.) B.L. Turner & T.M. Barkl. Douglas' groundsel Senecio flaccidus var. flaccidus Less. threadleaf groundsel Senecio fremontii Torr. & Gray Fremont's groundsel Senecio fremontii var. blitoides (Greene) Cronq. dwarf mountain ragwort Senecio hartianus Heller Hart's ragwort Senecio multicapitatus Greenm. ex Rydb. ragwort groundsel Senecio multilobatus Torr. & Gray ex Gray lobeleaf groundsel Senecio neomexicanus Gray Senecio neomexicanus var. metcalfei (Greene) T.M. Barkl. Senecio neomexicanus var. mutabilis (Greene) T.M. Barkl. Senecio neomexicanus var. neomexicanus Gray New Mexico groundsel Senecio parryi Gray mountain ragwort Senecio pauperculus Michx. balsam groundsel Senecio plattensis Nutt. prairie groundsel Senecio pseudaureus Rydb. Senecio pseudaureus var. pseudaureus Rydb. falsegold groundsel Senecio pudicus Greene bashful ragwort Senecio quaerens Greene Mogollon Mountain ragwort Senecio riddellii Torr. & Gray Riddell's ragwort Senecio sacramentanus Woot. & Standl. Sacramento ragwort Senecio salignus DC. willow ragwort Senecio sanguisorboides Rydb. burnet ragwort Senecio soldanella Gray Colorado ragwort Senecio spartioides Torr. & Gray broom groundsel Senecio spellenbergii T.M. Barkl. Carrizo Creek ragwort Senecio tampicanus DC. Great Plains ragwort Senecio taraxacoides (Gray) Greene dandelion ragwort Senecio triangularis Hook. arrowleaf groundsel Senecio tridenticulatus Rydb. threetooth ragwort Senecio vulgaris L. common groundsel Senecio werneriifolius (Gray) Gray hoary groundsel Senecio wootonii Greene Wooton's ragwort Silybum marianum (L.) Gaertn. blessed milkthistle Simsia lagasciformis DC. annual bushsunflower Solidago canadensis L. Solidago canadensis var. canadensis L. Solidago canadensis var. gilvocanescens Rydb. Solidago canadensis var. scabra Torr. & Gray Canada goldenrod Solidago missouriensis Nutt. Solidago missouriensis var. fasciculata Holz. Solidago missouriensis var. missouriensis Nutt."Solidago missouriensis var. tenuissima (Woot. & Standl.) C.& J. Taylor Missouri goldenrod Solidago mollis Bartl. Solidago mollis var. mollis Bartl. velvety goldenrod Solidago multiradiata Ait. mountain goldenrod Solidago parryi (Gray) Greene Parry's goldenrod Solidago rigida L. stiff goldenrod Solidago rigida ssp. humilis (Porter) Heard & Semple hardleaf goldenrod Solidago simplex Kunth Mt. Albert goldenrod Solidago simplex ssp. simplex Kunth Solidago simplex ssp. simplex var. nana (Gray) Ringius dwarf goldenrod Solidago spathulata DC. coast goldenrod Solidago spathulata var. neomexicana (Gray) Cronq. New Mexican goldenrod Solidago speciosa Nutt. Solidago speciosa var. pallida Porter showy goldenrod Solidago velutina DC. threenerve goldenrod Solidago wrightii Gray Solidago wrightii var. adenophora Blake Solidago wrightii var. wrightii Gray Wright's goldenrod Sonchus arvensis (Britt. ex Arsene) G.N. Jones field sowthistle Sonchus asper (L.) Hill spiny sowthistle Sonchus oleraceus L. common sowthistle Stenotus armerioides Nutt. Stenotus armerioides var. armerioides Nutt. thrifty goldenweed Stephanomeria exigua Nutt. Stephanomeria exigua ssp. exigua Nutt. small wirelettuce Stephanomeria pauciflora (Torr.) A. Nels. brownplume wirelettuce Stephanomeria tenuifolia (Raf.) Hall Stephanomeria tenuifolia var. tenuifolia (Raf.) Hall narrowleaf wirelettuce Stephanomeria thurberi Gray Thurber's wirelettuce Stevia micrantha Lag. annual candyleaf Stevia plummerae Gray Stevia plummerae var. plummerae Gray Plummer's candyleaf Stevia serrata Cav. sawtooth candyleaf Stylocline micropoides Gray woollyhead neststraw Tagetes micrantha Cav. licorice marigold Tanacetum vulgare L. common tansy Taraxacum laevigatum (Willd.) DC. rock dandelion 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 Tetradymia canescens DC. spineless horsebrush Tetradymia filifolia Greene threadleaf horsebrush Tetradymia spinosa Hook. & Arn. shortspine horsebrush Tetraneuris acaulis (Pursh) Greene Tetraneuris acaulis var. acaulis (Pursh) Greene stemless hymenoxys Tetraneuris acaulis var. arizonica (Greene) Parker Arizona hymenoxys Tetraneuris acaulis var. caespitosa A. Nels. caespitose hymenoxys Tetraneuris argentea (Gray) Greene perkysue Tetraneuris brandegei (Porter ex Gray) Parker Brandegee's hymenoxys Tetraneuris ivesiana Greene Ives' fournerved daisy Tetraneuris linearifolia (Hook.) Greene fineleaf fournerved daisy Tetraneuris scaposa (DC.) Greene Tetraneuris scaposa var. linearis (Nutt.) Parker Tetraneuris scaposa var. scaposa (DC.) Greene stemmy hymenoxys Tetraneuris scaposa var. villosa (Shinners) Shinners villous hymenoxys Thelesperma ambiguum Gray Colorado greenthread Thelesperma filifolium (Hook.) Gray Thelesperma filifolium var. filifolium (Hook.) Gray Thelesperma filifolium var. intermedium (Rydb.) Shinners stiff greenthread Thelesperma gracile (Torr.) Gray = Thelesperma megapotamicum Thelesperma longipes Gray longstalk greenthread Thelesperma megapotamicum (Spreng.) Kuntze Hopi tea greenthread Thelesperma simplicifolium Gray slender greenthread Thelesperma subnudum Gray sand fringedpod Thymophylla acerosa (DC.) Strother pricklyleaf dogweed Thymophylla aurea (Gray) Greene ex Britt. Thymophylla aurea var. aurea (Gray) Greene ex Britt. Thymophylla aurea var. polychaeta (Gray) Strother manyawn pricklyleaf Thymophylla pentachaeta (DC.) Small Thymophylla pentachaeta var. belenidium (DC.) Strother Thymophylla pentachaeta var. hartwegii (Gray) Strother Thymophylla pentachaeta var. pentachaeta (DC.) Small fiveneedle pricklyleaf Thymophylla setifolia Lag. Thymophylla setifolia var. radiata (Gray) Strother Texas pricklyleaf Tonestus pygmaeus (Torr. & Gray) A. Nels. pygmy goldenweed Townsendia annua Beaman annual townsend daisy Townsendia eximia Gray tall townsendia Townsendia exscapa (Richards.) Porter stemless townsendia Townsendia fendleri Gray Fendler's townsend daisy Townsendia formosa Greene smooth townsend daisy Townsendia glabella Gray Gray's townsend daisy Townsendia grandiflora Nutt. largeflower townsend daisy Townsendia incana Nutt. hoary townsendia Townsendia leptotes (Gray) Osterhout common townsendia Townsendia rothrockii Gray ex Rothrock Rothrock's townsendia 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 Trimorpha lonchophylla (Hook.) Nesom shortray boreal daisy Trimorpha lonchophylla var. lonchophylla (Hook.) Nesom spearleaf fleabane Trixis californica Kellogg California trixis Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray Verbesina encelioides ssp. encelioides (Cav.) Benth. & Hook. f. ex Gray golden crownbeard Verbesina longifolia (Gray) Gray longleaf crownbeard Verbesina nana (Gray) Robins. & Greenm. dwarf crownbeard Verbesina oreophila Woot. & Standl. mountain crownbeard Verbesina rothrockii Robins. & Greenm. Rothrock's crownbeard Vernonia marginata (Torr.) Raf. plains ironweed Vernonia missurica Raf. Missouri ironweed Viguiera cordifolia Gray heartleaf goldeneye Viguiera dentata (Cav.) Spreng. Viguiera dentata var. dentata (Cav.) Spreng. toothleaf goldeneye Viguiera stenoloba Blake skeletonleaf goldeneye Viguiera triloba (Gray) J. Olsen yellow streamers Wyethia arizonica Gray Arizona mulesears Wyethia scabra Hook. Wyethia scabra var. attenuata W.A. Weber Wyethia scabra var. canescens W.A. Weber badlands mulesears Xanthisma texanum DC. Texas sleepydaisy Xanthisma texanum ssp. drummondii (Torr. & Gray) Semple Drummond's sleepydaisy Xanthium spinosum L. spiny cockleburr Xanthium strumarium L. Xanthium strumarium var. canadense (P. Mill.) Torr. & Gray Xanthium strumarium var. glabratum (DC.) Cronq. rough cockleburr Zinnia acerosa (DC.) Gray desert zinnia Zinnia grandiflora Nutt. Rocky Mountain zinnia CONVOLVULACEAE Calystegia macounii (Greene) Brummitt Macoun's false bindweed Calystegia sepium (L.) R. Br. hedge false bindweed Calystegia sepium ssp. angulata Brummitt hedge false bindweed Convolvulus arvensis L. field bindweed Convolvulus equitans Benth. Texas bindweed Cressa truxillensis Kunth spreading alkaliweed Dichondra argentea Humb. & Bonpl. ex Willd. silver ponysfoot Dichondra brachypoda Woot. & Standl. New Mexico ponysfoot Evolvulus alsinoides (L.) L. slender dwarf morningglory Evolvulus arizonicus Gray wild dwarf morningglory Evolvulus nuttallianus J.A. Schultes shaggy dwarf morningglory Evolvulus sericeus Sw. silver dwarf morningglory Evolvulus sericeus var. sericeus Sw. silver dwarf morningglory Ipomoea barbatisepala Gray canyon morningglory Ipomoea barbigera Sweet = Ipomoea hederacea Ipomoea capillacea (Kunth) G. Don purple morningglory Ipomoea cardiophylla Gray heartleaf morningglory Ipomoea costellata Torr. crestrib morningglory Ipomoea cristulata Hallier f. Transpecos morningglory Ipomoea cuneifolia Gray non Meisn. = Ipomoea plummerae Ipomoea desertorum House = Ipomoea hederacea Ipomoea dumetorum Willd. ex Roemer & J.A. Schultes railwaycreeper Ipomoea hederacea Jacq. ivyleaf morningglory Ipomoea leptophylla Torr. bush morningglory Ipomoea leptotoma Torr. pink morningglory Ipomoea lindheimeri Gray Lindheimer's morningglory Ipomoea plummerae Gray Huachuca Mountain morningglory Ipomoea purpurea (L.) Roth tall morningglory Ipomoea tenuiloba Torr. spiderleaf CORNACEAE Cornus canadensis L. bunchberry dogwood Cornus sericea L. redosier dogwood Cornus sericea ssp. sericea L. redosier dogwood CRASSULACEAE Graptopetalum rusbyi (Greene) Rose San Francisco River leatherpetal Sedum cockerellii Britt. Cockerell's stonecrop Sedum debile S. Wats. orpine stonecrop Sedum integrifolium (Raf.) A. Nels. ledge stonecrop Sedum integrifolium ssp. integrifolium (Raf.) A. Nels. entireleaf stonecrop Sedum integrifolium ssp. neomexicanum (Britt.) Clausen New Mexican stonecrop Sedum integrifolium ssp. procerum Clausen entireleaf stonecrop Sedum lanceolatum Torr. spearleaf stonecrop Sedum rhodanthum Gray redpod stonecrop Sedum stelliforme S. Wats. Huachuca Mountain stonecrop Sedum stenopetalum Pursh wormleaf stonecrop Sedum wrightii Gray Wright's stonecrop CROSSOSOMATACEAE Apacheria chiricahuensis C.T. Mason apachebush Glossopetalon planitierum (Ensign) St. John plains greasebush Glossopetalon spinescens Gray spiny greasebush Glossopetalon spinescens var. spinescens Gray spiny greasebush CRUCIFERAE Alyssum parviflorum Fisch. ex Bieb. European madwort Arabis X divaricarpa A. Nels. (pro sp.) spreadingpod rockcress Arabis drummondii Gray Drummond's rockcress Arabis fendleri (S. Wats.) Greene Fendler's rockcress Arabis fendleri var. fendleri (S. Wats.) Greene Fendler's rockcress Arabis fendleri var. spatifolia (Rydb.) Rollins spoonleaf rockcress Arabis glabra (L.) Bernh. tower rockcress Arabis glabra var. glabra (L.) Bernh. tower rockcress Arabis hirsuta (L.) Scop. hairy rockcress Arabis hirsuta var. glabrata Torr. & Gray mountain rockcress Arabis hirsuta var. pycnocarpa (M. Hopkins) Rollins creamflower rockcress Arabis holboellii Hornem. Holboell's rockcress Arabis holboellii var. pinetorum (Tidestrom) Rollins Holboell's rockcress Arabis holboellii var. retrofracta (Graham) Rydb. second rockcress Arabis lignifera A. Nels. desert rockcress Arabis perennans S. Wats. perennial rockcress Arabis pulchra M.E. Jones ex S. Wats. beauty rockcress Arabis pulchra var. pallens M.E. Jones desert rockcress Arabis selbyi Rydb. Selby's rockcress Barbarea orthoceras Ledeb. American yellowrocket Barbarea vulgaris Ait. f. garden yellowrocket Brassica juncea (L.) Czern. India mustard Brassica nigra (L.) W.D.J. Koch black mustard Camelina microcarpa DC. littlepod falseflax Camelina sativa (L.) Crantz gold-of-pleasure Camelina sativa ssp. sativa (L.) Crantz gold-of-pleasure Capsella bursa-pastoris (L.) Medik. shepherd's purse Cardamine cardiophylla Greene Vaca Mountain toothwort Cardamine cordifolia Gray heartleaf bittercress Cardamine cordifolia var. cordifolia Gray heartleaf bittercress Cardaria draba (L.) Desv. pepperweed whitetop Cardaria draba ssp. draba (L.) Desv. heartpod hoarycress Chorispora tenella (Pallas) DC. crossflower Conringia orientalis (L.) Andrz. hare's ear mustard 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 pinnata (Walt.) Britt. western tansymustard Descurainia sophia (L.) Webb ex Prantl herb sophia Dimorphocarpa palmeri (Payson) Rollins Palmer's spectaclepod Dimorphocarpa wislizeni (Engelm.) Rollins touristplant Diplotaxis muralis (L.) DC. annual wallrocket Diplotaxis tenuifolia (L.) DC. perennial wallrocket Draba aurea Vahl ex Hornem. golden whitlowgrass Draba brachycarpa Nutt. ex Torr. & Gray shortpod whitlowgrass Draba cana Rydb. hoary whitlowgrass Draba crassifolia Graham snowbed whitlowgrass Draba cuneifolia Nutt. ex Torr. & Gray wedgeleaf whitlowgrass Draba helleriana Greene Heller's whitlowgrass Draba mogollonica Greene Mogollon Mountain whitlowgrass Draba petrophila Greene Santa Rita Mountain whitlowgrass Draba platycarpa Torr. & Gray broadpod whitlowgrass Draba rectifructa C.L. Hitchc. mountain whitlowgrass Draba reptans (Lam.) Fern. Carolina whitlowgrass Draba spectabilis Greene showy whitlowgrass Draba standleyi J.F. Macbr. & Payson Standley's whitlowgrass Draba streptocarpa Gray pretty whitlowgrass Dryopetalon runcinatum Gray rockmustard Eruca vesicaria (L.) Cav. rocketsalad Erysimum asperum (Nutt.) DC. plains wallflower Erysimum capitatum (Dougl. ex Hook.) Greene sanddune wallflower Erysimum inconspicuum (S. Wats.) MacM. shy wallflower Erysimum repandum L. spreading wallflower Halimolobos diffusa (Gray) O.E. Schulz spreading fissurewort Lepidium alyssoides Gray mesa pepperwort Lepidium austrinum Small southern pepperwort Lepidium bourgeauanum Thellung Bourgeau's pepperweed Lepidium campestre (L.) Ait. f. field pepperweed Lepidium densiflorum Schrad. common pepperweed Lepidium flavum Torr. yellow pepperweed Lepidium lasiocarpum Nutt. shaggyfruit pepperweed Lepidium latifolium L. broadleaved pepperweed Lepidium montanum Nutt. mountain pepperweed Lepidium oblongum Small veiny pepperweed Lepidium perfoliatum L. clasping pepperweed Lepidium ramosissimum A. Nels. manybranched pepperweed Lepidium thurberi Woot. Thurber's pepperweed Lepidium virginicum L. Virginia pepperweed Lesquerella aurea Woot. golden bladderpod Lesquerella calcicola Rollins Rocky Mountain bladderpod Lesquerella fendleri (Gray) S. Wats. Fendler's bladderpod Lesquerella gooddingii Rollins & Shaw Goodding's bladderpod Lesquerella gordonii (Gray) S. Wats. Gordon's bladderpod Lesquerella intermedia (S. Wats.) Heller mid bladderpod Lesquerella lata Woot. & Standl. Lincoln County bladderpod Lesquerella montana (Gray) S. Wats. mountain bladderpod Lesquerella ovalifolia Rydb. ex Britt. roundleaf bladderpod Lesquerella pinetorum Woot. & Standl. White Mountain bladderpod Lesquerella purpurea (Gray) S. Wats. rose bladderpod Lesquerella rectipes Woot. & Standl. straight bladderpod Lesquerella sessilis (S. Wats.) Small sessile bladderpod Lesquerella valida Greene trong bladderpod Malcolmia africana (L.) Ait. f. African mustard Nerisyrenia camporum (Gray) Greene mesa greggia Nerisyrenia linearifolia (S. Wats.) Greene White Sands fanmustard Pennellia longifolia (Benth.) Rollins longleaf mock thelypody Pennellia micrantha (Gray) Nieuwl. mountain mock thelypody Physaria acutifolia Rydb. sharpleaf twinpod Physaria didymocarpa (Hook.) Gray common twinpod Physaria floribunda Rydb. pointtip twinpod Physaria newberryi Gray Newberry's twinpod Raphanus raphanistrum L. wild radish Raphanus sativus L. wild radish Rorippa curvipes Greene bluntleaf yellowcress Rorippa microtitis (B.L. Robins.) Rollins Chihuahuan 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 tenerrima Greene Modoc yellowcress Rorippa truncata (Jepson) R. Stuckey wild yellowcress Schoenocrambe linearifolia (Gray) Rollins slimleaf plainsmustard Schoenocrambe linifolia (Nutt.) Greene flaxleaf plainsmustard Selenia dissecta Torr. & Gray Texas selenia Sibara grisea Rollins Marble Canyon winged rockcress Sinapis alba L. white mustard Sinapis arvensis L. charlock mustard Sisymbrium altissimum L. tall tumblemustard Sisymbrium irio L. Londonrocket Sisymbrium officinale (L.) Scop. hedgemustard Stanleya albescens M.E. Jones white princesplume Stanleya pinnata (Pursh) Britt. desert princesplume Streptanthella longirostris (S. Wats.) Rydb. longbeak streptanthella Streptanthus carinatus C. Wright ex Gray lyreleaf jewelflower Streptanthus cordatus Nutt. heartleaf twistflower Streptanthus sparsiflorus Rollins sparseflower jewelflower Thelypodiopsis aurea (Eastw.) Rydb. Durango tumblemustard Thelypodiopsis purpusii (Brandeg.) Rollins Purpus' tumblemustard Thelypodiopsis vaseyi (S. Wats. ex B.L. Robins.) Rollins Las Vegas tumblemustard Thelypodium integrifolium (Nutt.) Endl. ex Walp. entireleaved thelypody Thelypodium wrightii Gray Wright's thelypody Thlaspi arvense L. field pennycress Thlaspi montanum L. alpine pennycress Thysanocarpus curvipes Hook. sand fringepod CUCURBITACEAE Apodanthera undulata Gray melon loco Citrullus lanatus (Thunb.) Matsumura & Nakai watermelon Citrullus lanatus var. lanatus (Thunb.) Matsumura & Nakai watermelon Cucumis melo L. cantaloupe Cucurbita digitata Gray fingerleaf gourd Cucurbita foetidissima Kunth Missouri gourd Cucurbita texana Gray Texas gourd Cyclanthera dissecta (Torr. & Gray) Arn. cutleaf cyclanthera Echinocystis lobata (Michx.) Torr. & Gray wild cucumber Echinopepon coulteri (Gray) Rose Coulter's balsam apple Echinopepon wrightii (Gray) S. Wats. wild balsam apple Ibervillea tenuisecta (Gray) Small slimlobe globeberry Ibervillea tripartita (Naud.) Greene Rio Grande globeberry Marah gilensis Greene Gila manroot Sicyos ampelophyllus Woot. & Standl. streamside burr cucumber Sicyos glaber Woot. smooth burr cucumber Sicyos parviflorus Willd. smallflower burr cucumber Sicyosperma gracile Gray climbing arrowheads CUPRESSACEAE Cupressus arizonica Greene Arizona cypress Juniperus ashei Buchh. Ashe's juniper Juniperus communis L. common juniper Juniperus communis var. depressa Pursh common juniper Juniperus communis var. montana Ait. common juniper Juniperus deppeana Steud. alligator juniper Juniperus erythrocarpa Cory redberry juniper Juniperus monosperma (Engelm.) Sarg. oneseed juniper Juniperus osteosperma (Torr.) Little Utah juniper Juniperus pinchotii Sudworth Pinchot's juniper Juniperus scopulorum Sarg. Rocky Mountain juniper CUSCUTACEAE Cuscuta applanata Engelm. Gila River dodder Cuscuta approximata Bab. alfalfa dodder Cuscuta cephalanthi Engelm. buttonbush dodder Cuscuta coryli Engelm. hazel dodder Cuscuta cuspidata Engelm. cusp dodder Cuscuta epithymum L. clover dodder Cuscuta fasciculata Yuncker clustered dodder Cuscuta glomerata Choisy rope dodder Cuscuta gronovii Willd. ex J.A. Schultes scaldweed Cuscuta gronovii var. gronovii Willd. ex J.A. Schultes love dodder Cuscuta indecora Choisy bigseed alfalfa dodder Cuscuta leptantha Engelm. slender dodder Cuscuta megalocarpa Rydb. bigfruit dodder Cuscuta mitriformis Engelm. Cochise dodder Cuscuta pentagona Engelm. fiveangled dodder Cuscuta potosina Schaffn. globe dodder Cuscuta salina Engelm. saltmarsh dodder Cuscuta squamata Engelm. scaleflower dodder Cuscuta tuberculata Brandeg. tubercle dodder Cuscuta umbellata Kunth flatglobe dodder DENNSTAEDTIACEAE Pteridium aquilinum (L.) Kuhn western brackenfern Pteridium aquilinum var. pubescens Underwood hairy brackenfern DIPSACACEAE Dipsacus fullonum L. Fuller's teasel DRYOPTERIDACEAE Athyrium filix-femina (L.) Roth common ladyfern Athyrium filix-femina ssp. cyclosorum (Rupr.) C. Christens. subarctic ladyfern Cystopteris bulbifera (L.) Bernh. bulblet bladderfern Cystopteris fragilis (L.) Bernh. brittle bladderfern Cystopteris reevesiana Lellinger Reeves' bladderfern Cystopteris tennesseensis Shaver Tennessee bladderfern Cystopteris tenuis (Michx.) Desv. upland brittle bladderfern Dryopteris filix-mas (L.) Schott male fern Gymnocarpium dryopteris (L.) Newman western oakfern Phanerophlebia auriculata Underwood eared veinfern Polystichum lonchitis (L.) Roth northern hollyfern Woodsia neomexicana Windham New Mexico cliff fern Woodsia oregana D.C. Eat. Oregon woodsia Woodsia oregana ssp. oregana D.C. Eat. Oregon cliff fern Woodsia phillipsii Windham Phillips' cliff fern Woodsia plummerae Lemmon Plummer's cliff fern Woodsia scopulina D.C. Eat. Rocky Mountain woodsia ELEAGNACEAE Elaeagnus angustifolia L. Russian olive Shepherdia argentea (Pursh) Nutt. silver buffaloberry Shepherdia canadensis (L.) Nutt. russet buffaloberry EPHEDRACEAE Ephedra X intermixta Cutler intermixed jointfir Ephedra antisyphilitica Berl. ex C.A. Mey. clapweed Ephedra nevadensis S. Wats. Nevada jointfir Ephedra nevadensis var. aspera (Engelm. ex S. Wats.) L. Benson Nevada jointfir Ephedra torreyana S. Wats. Torrey's jointfir Ephedra trifurca Torr. ex S. Wats. longleaf jointfir Ephedra viridis Coville mormon tea Ephedra viridis var. viridis Coville mormon tea Ephedra viridis var. viscida (Cutler) L. Benson mormon tea EQUISETACEAE Equisetum arvense L. field horsetail Equisetum hyemale L. scouringrush horsetail Equisetum hyemale var. affine (Engelm.) A.A. Eat. scouringrush horsetail Equisetum laevigatum A. Braun smooth horsetail ERICACEAE Arbutus arizonica (Gray) Sarg. Arizona madrone Arbutus texana Buckl. = Arbutus xalapensis Arbutus xalapensis Kunth Texas madrone Arctostaphylos pungens Kunth pointleaf manzanita Arctostaphylos uva-ursi (L.) Spreng. kinnikinnick Gaultheria humifusa (Graham) Rydb. alpine spicywintergreen Vaccinium cespitosum Michx. dwarf blueberry Vaccinium myrtillus L. whortleberry Vaccinium myrtillus var. oreophilum (Rydb.) Dorn whortleberry Vaccinium scoparium Leib. ex Coville grouse whortleberry EUPHORBIACEAE Acalypha lindheimeri Muell.-Arg. shrubby copperleaf Acalypha neomexicana Muell.-Arg. New Mexico copperleaf Acalypha ostryifolia Riddell pineland threeseed mercury Argythamnia cyanophylla (Woot. & Standl.) Ingram Charleston Mountain silverbush Argythamnia humilis (Engelm. & Gray) Muell.-Arg. low silverbush Argythamnia mercurialina (Nutt.) Muell.-Arg. tall silverbush Argythamnia neomexicana Muell.-Arg. New Mexico silverbush Bernardia myricifolia (Scheele) S. Wats. mouse's eye Chamaesyce acuta (Engelm.) Millsp. pointed sandmat Chamaesyce albomarginata (Torr. & Gray) Small whitemargin sandmat Chamaesyce arizonica (Engelm.) Arthur Arizona sandmat Chamaesyce capitellata (Engelm.) Millsp. head sandmat Chamaesyce dioica (Kunth) Millsp. royal sandmat Chamaesyce fendleri (Torr. & Gray) Small Fendler's sandmat Chamaesyce geyeri (Engelm.) Small Geyer's sandmat Chamaesyce glyptosperma (Engelm.) Small ribseed sandmat Chamaesyce hypericifolia (L.) Millsp. graceful sandmat Chamaesyce hyssopifolia (L.) Small hyssopleaf sandmat Chamaesyce lata (Engelm.) Small hoary sandmat Chamaesyce maculata (L.) Small spotted sandmat Chamaesyce micromera (Boiss.) Woot. & Standl. Sonoran sandmat Chamaesyce missurica (Raf.) Shinners prairie sandmat Chamaesyce nutans (Lag.) Small eyebane Chamaesyce parryi (Engelm.) Rydb. Parry's sandmat Chamaesyce prostrata (Ait.) Small prostrate sandmat Chamaesyce revoluta (Engelm.) Small threadstem sandmat Chamaesyce serpens (Kunth) Small matted sandmat Chamaesyce serpyllifolia (Pers.) Small thymeleaf sandmat Chamaesyce serrula (Engelm.) Woot. & Standl. sawtooth sandmat Chamaesyce setiloba (Engelm. ex Torr.) Millsp. ex Parish Yuma sandmat Chamaesyce stictospora (Engelm.) Small slimseed sandmat Chamaesyce vermiculata (Raf.) House wormseed sandmat Chamaesyce villifera (Scheele) Small hairy sandmat Croton dioicus Cav. grassland croton Croton fruticulosus Engelm. ex Torr. bush croton Croton glandulosus L. vente conmigo Croton lindheimerianus Scheele threeseed croton Croton pottsii (Klotzsch) Muell.-Arg. leatherweed Croton texensis (Klotzsch) Muell.-Arg. Texas croton Ditaxis cyanophylla Woot. & Standl. = Argythamnia cyanophylla Ditaxis diversiflora Clokey = Argythamnia cyanophylla Ditaxis humilis (Engelm. & Gray) Pax = Argythamnia humilis var. humilis Ditaxis laevis (Torr.) Heller = Argythamnia humilis var. laevis Ditaxis mercurialina (Nutt.) Coult. = Argythamnia mercurialina var. mercurialina Ditaxis neomexicana (Muell.-Arg.) Heller = Argythamnia neomexicana Euphorbia acuta Engelm. = Chamaesyce acuta Euphorbia albomarginata Torr. & Gray = Chamaesyce albomarginata Euphorbia alta J.B.S. Norton giant spurge Euphorbia antisyphilitica Zucc. candelilla Euphorbia arizonica Engelm. = Chamaesyce arizonica Euphorbia arkansana Engelm. & Gray = Euphorbia spathulata Euphorbia bifida auct. non Hook. & Arn. = Chamaesyce hypericifolia Euphorbia bilobata Engelm. blackseed spurge Euphorbia brachycera Engelm. horned spurge Euphorbia brasiliensis Lam. = Chamaesyce hyssopifolia Euphorbia capitellata Engelm. = Chamaesyce capitellata Euphorbia chamaesula Boiss. mountain spurge Euphorbia chamaesyce auct. non L. = Chamaesyce prostrata Euphorbia dentata Michx. toothed spurge Euphorbia eriantha Benth. beetle spurge Euphorbia esula L. wolf's milk Euphorbia exstipulata Engelm. squareseed spurge Euphorbia fendleri Torr. & Gray = Chamaesyce fendleri var. fendleri Euphorbia georgei Oudejans = Chamaesyce acuta Euphorbia geyeri Engelm. = Chamaesyce geyeri Euphorbia glomerifera (Millsp.) L.C. Wheeler = Chamaesyce hypericifolia Euphorbia glyptosperma Engelm. = Chamaesyce glyptosperma Euphorbia heterophylla L. Mexican fireplant Euphorbia hexagona Nutt. ex Spreng. sixangle spurge Euphorbia hypericifolia L. = Chamaesyce hypericifolia Euphorbia hyssopifolia L. = Chamaesyce hyssopifolia Euphorbia indivisa (Engelm.) Tidestrom = Chamaesyce dioica Euphorbia lata Engelm. = Chamaesyce lata Euphorbia lurida Engelm. San Francisco Mountain spurge Euphorbia maculata L. = Chamaesyce maculata Euphorbia maculata auct. non L. = Chamaesyce nutans Euphorbia marginata Pursh snow on the mountain Euphorbia micromera Boiss. = Chamaesyce micromera Euphorbia missurica Raf. = Chamaesyce missurica Euphorbia neomexicana Greene = Chamaesyce serpyllifolia ssp. serpyllifolia Euphorbia nutans Lag. = Chamaesyce nutans Euphorbia nuttallii (Engelm.) Small = Chamaesyce missurica Euphorbia obtusata Pursh = Euphorbia spathulata Euphorbia parryi Engelm. = Chamaesyce parryi Euphorbia petaloidea Engelm. = Chamaesyce missurica Euphorbia preslii Guss. = Chamaesyce nutans Euphorbia prostrata Ait. = Chamaesyce prostrata Euphorbia pycnanthema Engelm. = Chamaesyce capitellata Euphorbia revoluta Engelm. = Chamaesyce revoluta Euphorbia robusta (Engelm.) Small Rocky Mountain spurge Euphorbia serpens Kunth = Chamaesyce serpens Euphorbia serpyllifolia Pers. = Chamaesyce serpyllifolia ssp. serpyllifolia Euphorbia serrula Engelm. = Chamaesyce serrula Euphorbia setiloba Engelm. ex Torr. = Chamaesyce setiloba Euphorbia spathulata Lam. warty spurge Euphorbia stictospora Engelm. = Chamaesyce stictospora Euphorbia strictior Holz. panhandle spurge Euphorbia supina Raf. = Chamaesyce maculata Euphorbia vermiculata Raf. = Chamaesyce vermiculata Euphorbia versicolor Greene = Chamaesyce arizonica Euphorbia villifera Scheele = Chamaesyce villifera Euphorbia villifera var. nuda Engelm. ex Boiss. = Chamaesyce villifera Euphorbia wootonii Oudejans Wooton's spurge Jatropha cardiophylla (Torr.) Muell.-Arg. sangre de cristo Jatropha macrorhiza Benth. ragged nettlespurge Manihot angustiloba (Torr.) Muell.-Arg. desertmountain manihot Phyllanthus abnormis Baill. Drummond's leafflower Phyllanthus abnormis var. abnormis Baill. Drummond's leafflower Phyllanthus polygonoides Nutt. ex Spreng. smartweed leafflower Reverchonia arenaria Gray sand reverchonia Stillingia linearifolia S. Wats. queensroot Stillingia sylvatica Garden ex L. queensdelight Stillingia sylvatica ssp. sylvatica Garden ex L. queensdelight Stillingia texana I.M. Johnston Texas toothleaf Tragia amblyodonta (Muell.-Arg.) Pax & K. Hoffmann dogtooth noseburn Tragia nepetifolia Cav. catnip noseburn Tragia ramosa Torr. branched noseburn FAGACEAE Quercus X palmeriana A. Camus Palmer's oak Quercus X pauciloba Rydb. (pro sp.) wavyleaf oak Quercus arizonica Sarg. Arizona white oak Quercus chrysolepis Liebm. canyon live oak Quercus emoryi Torr. Emory's oak Quercus gambelii Nutt. Gambel's oak Quercus grisea Liebm. gray oak Quercus havardii Rydb. Havard's oak Quercus hypoleucoides A. Camus silverleaf oak Quercus macrocarpa Michx. bur oak Quercus mohriana Buckl. ex Rydb. Mohr's oak Quercus muehlenbergii Engelm. chinkapin oak Quercus oblongifolia Torr. Mexican blue oak Quercus pungens Liebm. pungent oak Quercus rugosa Nee netleaf oak Quercus toumeyi Sarg. Toumey's oak Quercus turbinella Greene shrub live oak FOUQUIERIACEAE Fouquieria splendens Engelm. ocotillo FRANKENIACEAE Frankenia jamesii Torr. ex Gray James' seaheath FUMARIACEAE Corydalis aurea Willd. scrambledeggs Corydalis caseana Gray Sierran fumewort GARRYACEAE Garrya flavescens S. Wats. ashy silktassel Garrya ovata Benth. eggleaf silktassel Garrya ovata ssp. goldmanii (Woot. & Standl.) Dahling Goldman's silktassel Garrya wrightii Torr. Wright's silktassel GENTIANACEAE Centaurium calycosum (Buckl.) Fern. Arizona centaury Centaurium exaltatum (Griseb.) W. Wight ex Piper desert centaury Centaurium texense (Griseb.) Fern. Lady Bird's centaury Eustoma exaltatum (L.) Salisb. ex G. Don catchfly prairiegentian Eustoma russellianum (Hook.) G. Don showy prairiegentian Frasera paniculata Torr. tufted elkweed Frasera speciosa Dougl. ex Griseb. showy frasera Gentiana affinis Griseb. pleated gentian Gentiana algida Pallas whitish gentian Gentiana fremontii Torr. moss gentian Gentiana parryi Engelm. Parry's gentian Gentianella amarella (L.) Boerner autumn dwarfgentian Gentianella tenella (Rottb.) Boerner Dane's dwarfgentian Gentianopsis barbellata (Engelm.) Iltis perennial fringedgentian Gentianopsis detonsa (Rottb.) Ma windmill fringedgentian Gentianopsis macrantha (D. Don ex G. Don) Iltis grand fringedgentian Gentianopsis thermalis (Kuntze) Iltis Rocky Mountain fringedgentian Halenia recurva (Sm.) Allen Mt. Graham spurredgentian Lomatogonium rotatum (L.) Fries ex Fern. marsh felwort Swertia perennis L. star gentian Swertia radiata (Kellogg) Kuntze = Frasera speciosa GERANACEAE 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 lentum Woot. & Standl. Mogollon geranium Geranium richardsonii Fisch. & Trautv. Richardson's geranium Geranium viscosissimum Fisch. & C.A. Mey. ex C.A. Mey. sticky geranium Geranium wislizeni S. Wats. Huachuca Mountain geranium GROSSULARIACEAE Ribes americanum P. Mill. American black currant Ribes aureum Pursh golden currant Ribes cereum Dougl. wax currant Ribes coloradense Coville Colorado currant Ribes hirtellum Michx. hairystem gooseberry Ribes inerme Rydb. whitestem gooseberry Ribes leptanthum Gray trumpet gooseberry Ribes mescalerium Coville Mescalero currant Ribes montigenum McClatchie gooseberry currant Ribes pinetorum Greene orange gooseberry Ribes viscosissimum var. viscosissimum Pursh sticky currant Ribes wolfii Rothrock Wolf's currant HYDRANGACEAE Fendlera rupicola Gray cliff fendlerbush Fendlera wrightii (Gray) Heller Wright's fendlerbush Fendlerella utahensis (S. Wats.) Heller Utah fendlerbush Jamesia americana Torr. & Gray cliffbush Philadelphus argenteus Rydb. silver mockorange Philadelphus argyrocalyx Woot. silvercup mockorange Philadelphus hitchcockianus Hu Hitchcock's mockorange Philadelphus madrensis Hemsl. desert mountain mockorange Philadelphus mearnsii W.H. Evans ex Koehne Mearns' mockorange Philadelphus microphyllus Gray littleleaf mockorange Philadelphus occidentalis A. Nels. western mockorange Philadelphus serpyllifolius Gray littleleaf mockorange Philadelphus wootonii Hu Wooton's mockorange HYDROPHYLLACEAE Ellisia nyctelea (L.) L. Aunt Lucy Eucrypta micrantha (Torr.) Heller dainty desert hideseed Hydrophyllum fendleri (Gray) Heller Fendler's waterleaf Nama carnosum (Woot.) C.L. Hitchc. sand fiddleleaf Nama dichotomum (Ruiz & Pavon) Choisy wishbone fiddleleaf Nama hispidum Gray bristly nama Nama retrorsum J.T. Howell betatakin fiddleleaf Nama stevensii C.L. Hitchc. Stevens' fiddleleaf Nama xylopodum (Woot. & Standl.) C.L. Hitchc. yellowseed fiddleleaf Phacelia affinis Gray limestone scorpionweed Phacelia alba Rydb. white scorpionweed Phacelia arizonica Gray Arizona scorpionweed Phacelia bakeri (Brand) J.F. Macbr. Baker's scorpionweed Phacelia bombycina Woot. & Standl. Mangas Spring scorpionweed Phacelia coerulea Greene skyblue scorpionweed Phacelia congesta Hook. caterpillars Phacelia crenulata Torr. ex S. Wats. cleftleaf wildheliotrope Phacelia demissa Gray Intermountain scorpionweed Phacelia denticulata Osterhout Rocky Mountain scorpionweed Phacelia heterophylla Pursh varileaf phacelia Phacelia integrifolia Torr. gypsum scorpionweed Phacelia ivesiana Torr. Ives' phacelia Phacelia neomexicana Thurb. ex Torr. New Mexico scorpionweed Phacelia palmeri Torr. ex S. Wats. Palmer's scorpionweed Phacelia popei Torr. & Gray Pope's scorpionweed Phacelia rupestris Greene rock scorpionweed Phacelia sericea (Graham) Gray silky phacelia Phacelia splendens Eastw. patch scorpionweed IRIDACEAE Iris missouriensis Nutt. Rocky Mountain iris Sisyrinchium arizonicum Rothrock Arizona blueeyed grass Sisyrinchium campestre Bickn. prairie blueeyed grass Sisyrinchium demissum Greene dwarf blueeyed grass Sisyrinchium elmeri Greene Elmer's blueeyed grass Sisyrinchium idahoense Bickn. Idaho blueeyed grass Sisyrinchium montanum Greene mountain blueeyed grass JUGLANDACEAE Juglans major (Torr.) Heller Arizona walnut Juglans microcarpa Berl. little walnut Juglans microcarpa var. microcarpa Berl. little walnut KRAMERIACEAE Krameria erecta Willd. ex J.A. Schultes littleleaf ratany Krameria grayi Rose & Painter white ratany Krameria lanceolata Torr. trailing krameria LABIATEAE Agastache breviflora (Gray) Epling TransPecos giant hyssop Agastache cana (Hook.) Woot. & Standl. mosquito plant Agastache mearnsii Woot. & Standl. San Luis Mountain giant hyssop Agastache micrantha (Gray) Woot. & Standl. white giant hyssop Agastache pallidiflora (Heller) Rydb. Bill Williams' Mountain giant hyssop Agastache pallidiflora ssp. neomexicana (Briq.) Lint & Epling New Mexican giant hyssop Agastache pallidiflora ssp. pallidiflora (Heller) Rydb. pallid flower giant hyssop Agastache pringlei (Briq.) Lint & Epling Pringle's giant hyssop Agastache rupestris (Greene) Standl. threadleaf giant hyssop Agastache wrightii (Greenm.) Woot. & Standl. Sonoran giant hyssop Calamintha arkansana (Nutt.) Shinners limestone calamint Clinopodium vulgare L. wild basil Dracocephalum parviflorum Nutt. American dragonhead Hedeoma apiculata W.S. Stewart falsepennyroyal Hedeoma costata Gray falsepennyroyal Hedeoma dentata Torr. dentate false pennyroyal Hedeoma drummondii Benth. Drummond's falsepennyroyal Hedeoma hyssopifolia Gray falsepennyroyal Hedeoma nana (Torr.) Briq. falsepennyroyal Hedeoma oblongifolia (Gray) Heller falsepennyroyal Hedeoma plicata Torr. falsepennyroyal Hedeoma pulcherrima Woot. & Standl. falsepennyroyal Hedeoma reverchonii (Gray) Gray Reverchon's falsepennyroyal Hedeoma todsenii Irving Todsen's falsepennyroyal Lamium amplexicaule L. henbit deadnettle Leonurus cardiaca L. common motherwort Lycopus americanus Muhl. ex W. Bart. American waterhorehound Lycopus asper Greene rough bugleweed Marrubium vulgare L. horehound Mentha X rotundifolia (L.) Huds. (pro sp.) mint Mentha arvensis L. wild mint Mentha spicata L. spearmint Mentha viridis L. = Mentha spicata Moldavica parviflora (Nutt.) Britt. = Dracocephalum parviflorum Monarda citriodora Cerv. ex Lag. lemon beebalm Monarda citriodora ssp. austromontana (Epling) Scora lemon beebalm Monarda citriodora ssp. citriodora Cerv. ex Lag. lemon beebalm Monarda citriodora ssp. citriodora var. citriodora Cerv. ex Lag. lemon beebalm Monarda fistulosa L. wildbergamot beebalm Monarda fistulosa ssp. fistulosa L. wildbergamot beebalm Monarda fistulosa ssp. fistulosa var. menthifolia (Graham) Fern. mintleaf beebalm Monarda menthifolia Graham = Monarda fistulosa ssp. fistulosa var. menthifolia Monarda pectinata Nutt. pony beebalm Monarda punctata L. spotted beebalm Monarda punctata ssp. punctata L. spotted beebalm Monarda punctata ssp. punctata var. occidentalis (Epling) Palmer & Steyermark western beebalm Monardella odoratissima Benth. Pacific monardella Monardella odoratissima ssp. odoratissima Benth. alpine mountainbalm Monardella odoratissima ssp. parvifolia (Greene) Epling alpine mountainbalm Nepeta cataria L. catnip Physostegia virginiana (L.) Benth. obedient plant Poliomintha incana (Torr.) Gray hoary rosemarymint Prunella vulgaris L. common selfheal Salazaria mexicana Torr. Mexican bladdersage Salvia azurea Michx. ex Lam. azure blue sage Salvia azurea var. grandiflora Benth. pitcher sage Salvia columbariae Benth. chia Salvia columbariae var. columbariae Benth. California sage Salvia davidsonii Greenm. Davidson's sage Salvia farinacea Benth. mealycup sage Salvia henryi Gray crimson sage Salvia lemmonii Gray Lemmon's sage Salvia lycioides Gray canyon sage Salvia parryi Gray Parry's sage Salvia pinguifolia (Fern.) Woot. & Standl. rock sage Salvia reflexa Hornem. lanceleaf sage Salvia subincisa Benth. sawtooth sage Salvia summa A. Nels. great sage Satureja arkansana (Nutt.) Briq. = Calamintha arkansana Satureja glabra (Nutt.) Fern. = Calamintha arkansana Satureja vulgaris (L.) Fritsch = Clinopodium vulgare Scutellaria brevifolia Gray = Scutellaria resinosa Scutellaria brittonii Porter Britton's skullcap Scutellaria drummondii Benth. Drummond's skullcap Scutellaria epilobiifolia A. Hamilton = Scutellaria galericulata Scutellaria galericulata L. marsh skullcap Scutellaria lateriflora L. blue skullcap Scutellaria potosina Brandeg. Mexican skullcap Scutellaria resinosa Torr. resinous skullcap Scutellaria tessellata Epling Huachuca Mountain skullcap Scutellaria wrightii Gray = Scutellaria resinosa Stachys coccinea Jacq. scarlet hedgenettle Stachys palustris L. marsh hedgenettle Stachys rothrockii Gray Rothrock's hedgenettle Teucrium canadense L. Canada germander Teucrium cubense Jacq. small coastal germander Teucrium laciniatum Torr. lacy germander Trichostema arizonicum Gray Arizona bluecurls Trichostema brachiatum L. fluxweed LEGUMINOSAE Acacia angustissima (P. Mill.) Kuntze prairie acacia Acacia angustissima var. suffrutescens (Rose) Isely prairie acacia Acacia angustissima var. texensis (Torr. & Gray) Isely prairie wattle Acacia constricta Benth. whitethorn acacia Acacia constricta var. constricta Benth. whitethorn acacia Acacia constricta var. paucispina Woot. & Standl. whitethorn acacia Acacia greggii Gray catclaw acacia Acacia greggii var. greggii Gray catclaw acacia Acacia millefolia S. Wats. milfoil wattle Acacia minuta (M.E. Jones) Beauchamp coastal scrub wattle Acacia neovernicosa Isely viscid acacia Acacia roemeriana Scheele roundflower catclaw Albizia julibrissin Durz. silktree Alhagi maurorum Medik. camelthorn Amorpha californica Nutt. mock locust Amorpha canescens Pursh leadplant Amorpha fruticosa L. desert indigobush Amorpha nana Nutt. dwarf indigobush Astragalus accumbens Sheldon Zuni milkvetch Astragalus adsurgens Pallas standing milkvetch Astragalus agrestis Dougl. ex G. Don purple milkvetch Astragalus albulus Woot. & Standl. cibola milkvetch Astragalus allochrous Gray halfmoon milkvetch Astragalus alpinus L. alpine milkvetch Astragalus altus Woot. & Standl. tall milkvetch Astragalus amphioxys Gray Crescent milkvetch Astragalus australis (L.) Lam. Indian milkvetch Astragalus bisulcatus (Hook.) Gray twogrooved milkvetch Astragalus bodinii Sheldon Bodin's milkvetch Astragalus brandegei Porter Brandegee's milkvetch Astragalus calycosus Torr. ex S. Wats. matted poison milkvetch Astragalus canadensis L. Canadian milkvetch Astragalus castetteri Barneby Castetter's milkvetch Astragalus ceramicus Sheldon painted milkvetch Astragalus cerussatus Sheldon powdery milkvetch Astragalus cobrensis Gray copper mine milkvetch Astragalus coltonii M.E. Jones Colton's milkvetch Astragalus cottonii M.E. Jones Cotton's milkvetch Astragalus crassicarpus Nutt. groundplum milkvetch Astragalus cyaneus Gray cyanic milkvetch Astragalus desperatus M.E. Jones rimrock milkvetch Astragalus desperatus var. desperatus M.E. Jones rimrock milkvetch Astragalus drummondii Dougl. ex Hook. Drummond's milkvetch Astragalus egglestonii (Rydb.) Kearney & Peebles Eggleston's milkvetch Astragalus emoryanus (Rydb.) Cory Emory's milkvetch Astragalus episcopus S. Wats. bishop's milkvetch Astragalus feensis M.E. Jones Santa Fe milkvetch Astragalus flavus Nutt. yellow milkvetch Astragalus flexuosus (Hook.) Dougl. ex G. Don flexile milkvetch Astragalus fucatus Barneby Hopi milkvetch Astragalus giganteus S. Wats. giant milkvetch Astragalus gilensis Greene Gila milkvetch Astragalus gracilis Nutt. slender milkvetch Astragalus gypsodes Barneby gypsum milkvetch Astragalus hallii Gray Hall's milkvetch Astragalus humillimus Gray Mancos milkvetch Astragalus humistratus Gray groundcover milkvetch Astragalus iodopetalus (Rydb.) Barneby violet milkvetch Astragalus kentrophyta Gray spiny milkvetch Astragalus knightii Barneby Knight's milkvetch Astragalus lentiginosus Dougl. ex Hook. specklepod milkvetch Astragalus lonchocarpus Torr. rushy milkvetch Astragalus lotiflorus Hook. lotus milkvetch Astragalus micromerius Barneby Chaco milkvetch Astragalus missouriensis Nutt. Missouri milkvetch Astragalus mollissimus Torr. woolly milkvetch Astragalus monumentalis Barneby Monument Valley milkvetch Astragalus naturitensis Payson Naturita milkvetch Astragalus neomexicanus Woot. & Standl. New Mexico milkvetch Astragalus newberryi Gray Newberry's milkvetch Astragalus nothoxys Gray sheep milkvetch Astragalus nuttallianus DC. smallflowered milkvetch Astragalus oocalycis M.E. Jones Arboles milkvetch Astragalus pattersonii Gray Patterson's milkvetch Astragalus pectinatus (Hook.) Dougl. ex G. Don narrowleaf milkvetch Astragalus pictiformis Barneby Guadalupe milkvetch Astragalus plattensis Nutt. Platte River milkvetch Astragalus praelongus Sheldon stinking milkvetch Astragalus proximus (Rydb.) Woot. & Standl. Aztec milkvetch Astragalus puniceus Osterhout Trinidad milkvetch Astragalus racemosus Pursh alkali poisonvetch Astragalus ripleyi Barneby Ripley's milkvetch Astragalus robbinsii (Oakes) Gray Robbins' milkvetch Astragalus sabulonum Gray gravel milkvetch Astragalus scopulorum Porter Rocky Mountain milkvetch Astragalus sericoleucus Gray silky milkvetch Astragalus shortianus Nutt. Short's milkvetch Astragalus siliceus Barneby Flint Mountain milkvetch Astragalus tenellus Pursh looseflower milkvetch Astragalus tephrodes Gray ashen milkvetch Astragalus thurberi Gray Thurber's milkvetch Astragalus vaccarum Gray Cow Spring milkvetch Astragalus waterfallii Barneby Waterfall's milkvetch Astragalus wingatanus S. Wats. Fort Wingate milkvetch Astragalus wittmannii Barneby Wittmann's milkvetch Astragalus wootonii Sheldon Wooton's milkvetch Astragalus zionis M.E. Jones Zion milkvetch Caesalpinia brachycarpa (Gray) Fisher broadpod nicker Caesalpinia caudata (Gray) Fisher tailed nicker Caesalpinia drepanocarpa (Gray) Fisher sicklepod holdback Caesalpinia gilliesii (Hook.) Wallich ex D. Dietr. bird-of-paradise shrub Caesalpinia jamesii (Torr. & Gray) Fisher James' holdback Calliandra eriophylla Benth. fairyduster Calliandra humilis Benth. dwarf stickpea Cassia bauhinioides Gray = Senna bauhinioides Cassia brachiata (Pollard) J.F. Macbr. = Chamaecrista fasciculata Cassia chamaecrista L. = Chamaecrista fasciculata Cassia covesii Gray = Senna covesii Cassia fasciculata Michx. = Chamaecrista fasciculata Cassia leptadenia Greenm. = Chamaecrista nictitans ssp. nictitans var. leptadenia Cassia leptocarpa var. glaberrima M.E. Jones = Senna hirsuta var. glaberrima Cassia lindheimeriana Scheele = Senna lindheimeriana Cassia pumilio Gray = Senna pumilio Cassia robusta (Pollard) Pollard = Chamaecrista fasciculata Cassia roemeriana Scheele = Senna roemeriana Cassia rostrata (Woot. & Standl.) Tidestrom ex Tidestrom & Kittell = Chamaecrista fasciculata Cassia wislizeni Gray = Senna wislizeni Cassia wrightii Gray = Chamaecrista serpens var. wrightii Cercis canadensis L. eastern redbud Cercis canadensis var. mexicana (Rose) M. Hopkins Mexican redbud Chamaecrista fasciculata (Michx.) Greene sleepingplant Chamaecrista nictitans (L.) Moench partridge pea Chamaecrista serpens (L.) Greene slender sensitive pea Cologania angustifolia Kunth longleaf cologania Cologania pulchella Kunth Mexican cologania Crotalaria pumila Ortega low rattlebox Crotalaria sagittalis L. arrowhead rattlebox Dalea albiflora Gray whiteflower prairieclover Dalea aurea Nutt. ex Pursh golden prairieclover Dalea bicolor Humb. & Bonpl. ex Willd. silver prairieclover Dalea brachystachya Gray Fort Bowie prairieclover Dalea candida Willd. slender white prairieclover Dalea compacta Spreng. compact prairieclover Dalea cylindriceps Barneby Andean prairieclover Dalea enneandra Nutt. nineanther prairieclover Dalea exigua Barneby Chihuahuan prairieclover Dalea filiformis Gray Sonoran prairieclover Dalea formosa Torr. featherplume Dalea frutescens Gray black prairieclover Dalea grayi (Vail) L.O. Williams Gray's prairieclover Dalea greggii Gray Gregg's prairieclover Dalea jamesii (Torr.) Torr. & Gray James' prairieclover Dalea lachnostachys Gray glandleaf prairieclover Dalea lanata Spreng. woolly prairieclover Dalea leporina (Ait.) Bullock foxtail prairieclover Dalea multiflora (Nutt.) Shinners roundhead prairieclover Dalea nana Torr. ex Gray dwarf prairieclover Dalea neomexicana (Gray) Cory downy prairieclover Dalea pogonathera Gray bearded prairieclover Dalea polygonoides Gray sixweeks prairieclover Dalea pulchra H.C. Gentry Santa Catalina prairieclover Dalea purpurea Vent. purple prairieclover Dalea scariosa S. Wats. Albuquerque prairieclover Dalea tenuifolia (Gray) Shinners slimleaf prairieclover Dalea urceolata Greene pineforest prairieclover Dalea versicolor Zucc. oakwoods prairieclover Dalea villosa (Nutt.) Spreng. silky prairieclover Dalea wrightii Gray Wright's prairieclover Desmanthus cooleyi (Eat.) Trel. Cooley's bundleflower Desmanthus glandulosus (B.L. Turner) Luckow glandular bundleflower Desmanthus illinoensis (Michx.) MacM. ex B.L. Robins. & Fern. prairie bundleflower Desmanthus obtusus S. Wats. bluntpod bundleflower Desmanthus velutinus Scheele velvet bundleflower Desmodium arizonicum S. Wats. Arizona ticktrefoil Desmodium batocaulon Gray San Pedro ticktrefoil Desmodium grahamii Gray Graham's ticktrefoil Desmodium metcalfei (Rose & Painter) Kearney & Peebles Metcalfe's ticktrefoil Desmodium neomexicanum Gray New Mexico ticktrefoil Desmodium rosei Schub. Rose's ticktrefoil Erythrina flabelliformis Kearney coralbean Eysenhardtia polystachya (Ortega) Sarg. kidneywood Galactia wrightii Gray Wright's milkpea Gleditsia triacanthos L. honeylocust Glycyrrhiza lepidota Pursh American licorice Hedysarum mackenziei var. fraseri Boivin = Hedysarum boreale ssp. boreale var. boreale Hedysarum pabulare var. rivulare L.O. Williams = Hedysarum boreale ssp. boreale var. boreal