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1231 Plants Found

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Ordered by common name.

Scientific Name	Common Name	†	Map‡
Mentzelia hirsutissima S. Watson	hairy blazingstar
Geraea canescens Torr. & A. Gray	hairy desertsunflower
Bouteloua hirsuta Lag.	hairy grama
Funastrum hirtellum (A. Gray) Schltr.	hairy milkweed
Dalea mollis Benth.	hairy prairie clover
Marsilea vestita Hook. & Grev.	hairy waterclover
Eriodictyon trichocalyx A. Heller	hairy yerba santa
Mirabilis comata (Small) Standl.	hairy-tuft four o'clock
Bahia absinthifolia Benth.	hairyseed bahia
Astragalus allochrous A. Gray	halfmoon milkvetch
Panicum hallii Vasey	Hall's panicgrass
Tetracoccus hallii Brandegee	Hall's shrubby-spurge
Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve	Hardstem Bulrush
Oenothera hexandra (Ortega) W.L. Wagner & Hoch	harlequinbush
Berberis harrisoniana Kearney & Peebles	Harrison's barberry
Chylismia cardiophylla (Torr.) Small	Heartleaf Suncup
Dichanthelium oligosanthes (Schult.) Gould	Heller's rosette grass
Phacelia cryptantha Greene	Hiddenflower Phacelia
Eryngium nasturtiifolium Juss. ex Delar. f.	hierba del sapo
Bowlesia incana Ruiz & Pav.	hoary bowlesia
Dieteria canescens (Pursh) Nutt.	Hoary Tansyaster
Lupinus succulentus Douglas ex K. Koch	hollowleaf annual lupine
Ambrosia ilicifolia (A. Gray) Payne	hollyleaf bur ragweed
Prunus ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr.	hollyleaf cherry
Gilia latiflora (A. Gray) A. Gray	hollyleaf gilia
Navarretia atractyloides (Benth.) Hook. & Arn.	hollyleaf pincushionplant
Rhamnus ilicifolia Kellogg	hollyleaf redberry
Prosopis glandulosa Torr.	Honey Mesquite
Oenothera elata Kunth	Hooker's evening primrose
Zannichellia palustris L.	Horned Pondweed
Euphorbia brachycera Engelm.	horned spurge
Asclepias subverticillata (A. Gray) Vail	Horsetail Milkweed
Conyza canadensis (L.) Cronquist	Horseweed	✓
Epilobium canum (Greene) P.H. Raven	hummingbird trumpet
Astrolepis integerrima (Hook.) Benham & Windham	hybrid cloakfern
Achnatherum hymenoides (Roem. & Schult.) Barkworth	Indian Ricegrass
Hoffmannseggia glauca (Ortega) Eifert	Indian rushpea
Nicotiana quadrivalvis Pursh	Indian tobacco
Juncus interior Wiegand	inland rush
Quercus wislizeni A. DC.	interior live oak
Allenrolfea occidentalis (S. Watson) Kuntze	Iodine Bush
Juncus xiphioides E. Mey.	irisleaf rush
Phacelia ivesiana Torr.	Ives' Phacelia
Physalis hederifolia A. Gray	ivyleaf groundcherry
Hilaria jamesii (Torr.) Benth.	James' Galleta
Echinomastus johnsonii (Parry ex Engelm.) E.M. Baxter	Johnson's fishhook cactus
Juncus articulatus L.	jointleaf rush
Simmondsia chinensis (Link) C.K. Schneid.	jojoba
Mentzelia jonesii (Urb. & Gilg) H.J. Thomp. & Roberts	Jones' blazingstar
Linanthus jonesii (A. Gray) Greene	Jones' linanthus
Yucca brevifolia Engelm.	Joshua Tree
Cylindropuntia fulgida (Engelm.) F.M. Knuth	jumping cholla
Phoradendron juniperinum Engelm. ex A. Gray	Juniper Mistletoe
Rhus kearneyi F.A. Barkley	Kearney's sumac
Eriogonum reniforme Torr. & Frém.	kidneyleaf buckwheat
Paspalum distichum L.	knotgrass
Phacelia tanacetifolia Benth.	lacy phacelia
Eriogonum deflexum var. deflexum	Ladder Buckwheat
Phyla lanceolata (Michx.) Greene	Lanceleaf Fogfruit
Setaria macrostachya Kunth	Large-Spike Bristlegrass
Boerhavia wrightii A. Gray	largebract spiderling
Allium macropetalum Rydb.	largeflower onion
Colubrina californica I.M. Johnst.	Las Animas nakedwood
Gutierrezia serotina Greene	late snakeweed
Malosma laurina (Nutt.) Nutt. ex Abrams	laurel sumac
Salvia greatae Brandegee	lavender sage
Baileya pauciradiata Harv. & A. Gray ex A. Gray	laxflower
Potamogeton foliosus Raf.	Leafy Pondweed
Epilobium ravenii Hoch & Gandhi	Leafy Willowherb
Lemna minuta Kunth	Least Duckweed
Lastarriaea coriacea (Goodman) Hoover	leather spineflower
Leptosiphon lemmonii (A. Gray) J.M. Porter & L.A. Johnson	Lemmon's linanthus
Senecio lemmonii A. Gray	Lemmon's ragwort
Rhus integrifolia (Nutt.) W.H. Brewer & S. Watson	lemonade sumac
Castilleja minor (A. Gray) A. Gray	Lesser Indian Paintbrush
Sairocarpus pusillus (Brandegee) D.A. Sutton	lesser snapdragon
Stephanomeria tenuifolia (Torr.) H.M.Hall	Lesser Wirelettuce
Gilia flavocincta A. Nelson	lesser yellowthroat gilia
Linum lewisii Pursh	Lewis flax
Galium proliferum A. Gray	limestone bedstraw
Phacelia affinis A. Gray	limestone phacelia
Oligomeris linifolia (Vahl) J.F. Macbr.	lineleaf whitepuff
Hordeum pusillum Nutt.	Little Barley
Schizachyrium scoparium (Michx.) Nash	Little Bluestem
Eriogonum trichopes Torr.	little deserttrumpet
Gilia minor A.D. Grant & V.E. Grant	little gilia
Mimulus rubellus A. Gray	little redstem monkeyflower
Brickellia microphylla (Nutt.) A. Gray	littleleaf brickellbush
Krameria erecta Willd. ex Schult.	littleleaf ratany
Muhlenbergia microsperma (DC.) Trin.	littleseed muhly
Piptatheropsis micrantha "(Trin. & Rupr.) Romasch.	littleseed ricegrass
Erigeron lobatus A. Nelson	lobed fleabane
Packera multilobata (Torr. & A. Gray ex A. Gray) W.A. Weber & Á. Löve	Lobeleaf Groundsel
Ranunculus longirostris Godr.	Longbeak Buttercup
Streptanthella longirostris (S. Watson) Rydb.	longbeak streptanthella
Eremothera chamaenerioides (A.Gray) W.L.Wagner & Hoch	Longcapsule Suncup
Justicia longii Hilsenb.	longflower tube tongue
Heliomeris longifolia (B.L. Rob. & Greenm.) Cockerell	longleaf false goldeneye
Ephedra trifurca Torr. ex S. Watson	longleaf jointfir
Pennellia longifolia (Benth.) Rollins	longleaf mock thelypody
Potamogeton nodosus Poir.	longleaf pondweed
Juncus macrophyllus Coville	longleaf rush
Mirabilis tenuiloba S. Watson	longlobe four o'clock
Plectritis ciliosa (Greene) Jeps.	longspur seablush
Juncus longistylis Torr.	longstyle rush
Muhlenbergia longiligula Hitchc.	longtongue muhly
Ziziphus obtusifolia (Hook. ex Torr. & A. Gray) A. Gray	lotebush
Orobanche ludoviciana Nutt.	Louisiana Broomrape
Vicia ludoviciana Nutt.	Louisiana vetch
Dasyochloa pulchella (Kunth) Willd. ex Rydb.	Low Woollygrass
Streptanthus carinatus C. Wright ex A. Gray	lyreleaf jewelflower
Diplachne fusca (L.) P.Beauv. ex Roem. & Schult.	Malabar Sprangletop
Phacelia bombycina Wooton & Standl.	Mangas Spring phacelia
Pectis papposa Harv. & A. Gray	manybristle chinchweed
Ipomopsis multiflora (Nutt.) V.E. Grant	manyflowered ipomopsis
Eriophyllum multicaule (DC.) A. Gray	manystem woolly sunflower
Grusonia parishii (Orcutt) Pinkava	matted cholla
Hordeum brachyantherum Nevski	meadow barley
Chenopodium incanum (S. Watson) A. Heller	mealy goosefoot
Xylorhiza cognata (H.M. Hall) T.J. Watson	Mecca woodyaster
Apodanthera undulata A. Gray	melon loco
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.	mesa dropseed
Machaeranthera tagetina Greene	mesa tansyaster
Phoradendron californicum Nutt.	mesquite mistletoe
Hulsea mexicana Rydb.	Mexican alpinegold
Salazaria mexicana Torr.	Mexican bladdersage
Eragrostis mexicana (Hornem.) Link	Mexican lovegrass
Panicum hirticaule J. Presl	Mexican panicgrass
Juncus mexicanus Willd. ex Schult. & Schult. f.	Mexican rush
Scutellaria potosina Brandegee	Mexican skullcap
Claytonia perfoliata Donn ex Willd.	miner's lettuce
Lupinus bicolor Lindl.	miniature lupine
Eriastrum diffusum (A. Gray) H. Mason	miniature woollystar
Verbena menthifolia Benth.	mint vervain
Cucurbita foetidissima Kunth	Missouri Gourd
Physaria tenella (A.Nelson) O'Kane & Al-Shehbaz	Moapa Bladderpod
Apiastrum angustifolium Nutt.	mock parsley
Rorippa tenerrima Greene	Modoc yellowcress
Cleomella obtusifolia Torr. & Frém.	Mojave cleomella
Lomatium mohavense (J.M. Coult. & Rose) J.M. Coult. & Rose	Mojave Desertparsley
Monoptilon bellioides (A. Gray) H.M. Hall	Mojave desertstar
Psorothamnus arborescens (Torr. ex A. Gray) Barneby	Mojave indigobush
Asclepias nyctaginifolia A. Gray	Mojave milkweed
Plagiobothrys jonesii A. Gray	Mojave popcornflower
Ericameria paniculata (A. Gray) Rydb.	Mojave rabbitbrush
Senecio mohavensis A. Gray	Mojave ragwort
Salvia mohavensis Greene	Mojave sage
Suaeda nigra (Raf.) J.F.Macbr.	Mojave Seablite
Euphorbia schizoloba Engelm.	Mojave spurge
Camissonia campestris (Greene) P.H. Raven	Mojave suncup
Cirsium mohavense (Greene) Petr.	Mojave thistle
Stillingia paucidentata S. Watson	Mojave toothleaf
Xylorhiza tortifolia (Torr. & A. Gray) Greene	Mojave woodyaster
Yucca schidigera Roezl ex Ortgies	Mojave yucca
Stylocline intertexta Morefield	Morefield's neststraw
Ephedra viridis Coville	Mormon Tea
Pectocarya setosa A. Gray	moth combseed
Bromus marginatus Nees ex Steud.	Mountain Brome
Thysanocarpus laciniatus Nutt.	mountain fringepod
Lepidium montanum Nutt.	mountain pepperweed
Phlox austromontana Coville	mountain phlox
Symphoricarpos oreophilus A. Gray	mountain snowberry
Eleocharis montana (Kunth) Roem. & Schult.	mountain spikerush
Bernardia myricifolia (Scheele) S. Watson	mouse's eye
Nama stenocarpum A. Gray	mud fiddleleaf
Baccharis salicifolia (Ruiz & Pav.) Pers.	mule-fat
Quercus cornelius-mulleri Nixon & Steele	Muller oak
Cylindropuntia munzii (C.B. Wolf) Backeb.	Munz's cholla
Poa fendleriana (Steud.) Vasey	muttongrass
Johnstonella holoptera (A.Gray) Hasenstab & M.G.Simpson	Narrow-Wing Cat's-Eye
Galium angustifolium Nutt. ex A. Gray	narrowleaf bedstraw
Ericameria linearifolia (DC.) Urbatsch & Wussow	narrowleaf goldenbush
Chenopodium leptophyllum (Moq.) Nutt. ex S. Watson	Narrowleaf Goosefoot
Petalonyx linearis Greene	narrowleaf sandpaper plant
Argythamnia lanceolata (Benth.) Müll. Arg.	narrowleaf silverbush
Eremothera refracta (S.Watson) W.L.Wagner & Hoch	Narrowleaf Suncup
Salix exigua Nutt.	narrowleaf willow
Eriodictyon angustifolium Nutt.	narrowleaf yerba santa
Erigeron concinnus (Hook. & Arn.) Torr. & A. Gray	Navajo fleabane
Leptochloa nealleyi Vasey	Nealley's Sprangletop
Veronica peregrina L.	neckweed
Lasthenia gracilis (DC.) Greene	needle goldfields
Bouteloua aristidoides (Kunth) Griseb.	needle grama
Eleocharis acicularis (L.) Roem. & Schult.	needle spikerush
Hesperostipa comata (Trin. & Rupr.) Barkworth	Needle-and-Thread Grass
Celtis reticulata	Netleaf Hackberry
Lomatium nevadense (S. Watson) J.M. Coult. & Rose	Nevada biscuitroot
Cryptantha nevadensis A. Nelson & Kennedy	Nevada cryptantha
Psorothamnus polydenius (Torr. ex S. Watson) Rydb.	Nevada dalea
Ephedra nevadensis S. Watson	Nevada Jointfir
Acmispon plebeius (Brandegee) Allred	New Mexico Bird's-Foot Trefoil
Acalypha neomexicana Müll. Arg.	New Mexico copperleaf
Cryptantha albida (Kunth) I.M. Johnst.	New Mexico cryptantha
Hesperostipa neomexicana (Thurb. ex J.M. Coult.) Barkworth	New Mexico feathergrass
Chenopodium neomexicanum Standl.	New Mexico goosefoot
Packera neomexicana (A. Gray) W.A. Weber & Á. Löve	New Mexico groundsel
Robinia neomexicana A. Gray	New Mexico locust
Muhlenbergia pauciflora Buckley	New Mexico muhly
Rafinesquia neomexicana A. Gray	New Mexico plumeseed
Argythamnia neomexicana Müll. Arg.	New Mexico silverbush
Psilactis asteroides A. Gray	New Mexico tansyaster
Cirsium neomexicanum A. Gray	New Mexico thistle
Horsfordia newberryi (S. Watson) A. Gray	Newberry's velvetmallow
Peniocereus greggii (Engelm.) Britton & Rose	nightblooming cereus
Enneapogon desvauxii Desv. ex P. Beauv.	nineawn pappusgrass
Bromus anomalus Rupr. ex Fourn.	nodding brome
Tiquilia nuttallii (Hook.) A.T. Richardson	Nuttall's crinklemat
Blitum nuttallianum Schult.	Nuttall's Povertyweed
Packera quercetorum (Greene) C. Jeffrey	Oak Creek ragwort
Phoradendron leucarpum (Raf.) Reveal & M.C. Johnst.	Oak Mistletoe
Dalea versicolor Zucc.	oakwoods prairie clover
Hedeoma oblongifolia (A. Gray) A. Heller	oblongleaf false pennyroyal
Fouquieria splendens Engelm.	Ocotillo
Cyperus retroflexus Buckley	oneflower flatsedge
Juniperus monosperma (Engelm.) Sarg.	Oneseed Juniper
Achyronychia cooperi Torr. & A. Gray	onyxflower
Phemeranthus aurantiacus (Engelm.) Kiger	orange fameflower
Xylorhiza orcuttii (Vasey & Rose) Greene	Orcutt's aster
Stenocereus thurberi (Engelm.) Buxbaum	organpipe cactus
Sidalcea covillei Greene	Owens Valley sidalcea
Mentzelia obscura H.J. Thomp. & Roberts	Pacific blazingstar
Azolla filiculoides Lam.	Pacific mosquitofern
Plagiobothrys tenellus (Nutt. ex Hook.) A. Gray	Pacific popcornflower
Calystegia longipes (S. Watson) Brummitt	Paiute false bindweed
Lycium pallidum Miers	pale desert-thorn
Rumex altissimus Alph. Wood	pale dock
Oenothera pallida Lindl.	pale evening primrose
Persicaria lapathifolia (L.) Delarbre	Pale Smartweed
Hibiscus denudatus Benth.	paleface
Quercus palmeri Engelm.	Palmer oak
Triteleiopsis palmeri (S. Watson) Hoover	Palmer's Bajalily
Amsonia palmeri A. Gray	Palmer's bluestar
Eriogonum palmerianum Reveal	Palmer's buckwheat
Tiquilia palmeri (A. Gray) A.T. Richardson	Palmer's crinklemat
Harpagonella palmeri A. Gray	Palmer's grapplinghook
Abutilon palmeri A. Gray	Palmer's Indian mallow
Astragalus palmeri A. Gray	Palmer's milkvetch
Dudleya saxosa (M.E. Jones) Britton & Rose	Panamint liveforever
Scirpus microcarpus J. Presl & C. Presl	panicled bulrush
Atrichoseris platyphylla (A. Gray) A. Gray	parachute plant
Trichostema parishii Vasey	Parish's bluecurls
Lycium parishii A. Gray	Parish's desert-thorn
Cyperus parishii Britton	Parish's flatsedge
Arthrocnemum subterminale (Parish) Standl.	Parish's glasswort
Bahiopsis parishii (Greene) E.E.Schill. & Panero	Parish's Goldeneye
Abutilon parishii S. Watson	Parish's Indian mallow
Achnatherum parishii (Vasey) Barkworth	Parish's needlegrass
Allium parishii S. Watson	Parish's onion
Eschscholzia parishii Greene	Parish's poppy
Eleocharis parishii Britton	Parish's spikerush
Pinus quadrifolia Parl. ex Sudw.	Parry pinyon
Penstemon parryi (A. Gray) A. Gray	Parry's beardtongue
Gaillardia parryi Greene	Parry's blanketflower
Marina parryi (Torr. & A. Gray) Barneby	Parry's false prairie-clover
Ziziphus parryi Torr.	Parry's jujube
Lycium cooperi A. Gray	peach thorn
Chaenactis carphoclinia A. Gray	pebble pincushion
Phacelia pedicellata A. Gray	pedicellate phacelia
Abutilon incanum (Link) Sweet	Pelotazo
Pectocarya peninsularis I.M. Johnst.	peninsular pectocarya
Parietaria pensylvanica Muhl. ex Willd.	Pennsylvania Pellitory
Boechera perennans (S.Watson) W.A.Weber	Perennial Rockcress
Heliotropium convolvulaceum (Nutt.) A. Gray	phlox heliotrope
Jatropha cuneata Wiggins & Rollins	physicnut
Chaenactis fremontii A. Gray	pincushion flower
Blepharoneuron tricholepis (Torr.) Nash	pine dropseed
Arceuthobium vaginatum (Willd.) J. Presl	pineland dwarf mistletoe
Asclepias linaria Cav.	pineneedle milkweed
Androstephium breviflorum S. Watson	pink funnel lily
Abronia umbellata Lam.	Pink Sand Verbena
Horsfordia alata (S. Watson) A. Gray	pink velvetmallow
Echinocereus fendleri (Engelm.) Sencke ex J.N. Haage	pinkflower hedgehog cactus
Echinocereus bonkerae Thornb. & Bonker	pinkflower hedgehog cactus
Echinocereus fasciculatus (Engelm. ex B.D. Jacks.) L.D. Benson	pinkflower hedgehog cactus
Trifolium gracilentum Torr. & A. Gray	pinpoint clover
Chenopodium berlandieri Moq.	Pitseed Goosefoot
Melampodium leucanthum Torr. & A. Gray	plains blackfoot
Linum puberulum (Engelm.) A. Heller	plains flax
Eragrostis intermedia Hitchc.	plains lovegrass
Opuntia polyacantha Haw.	plains pricklypear
Woodsia plummerae Lemmon	Plummer's cliff fern
Cryptantha muricata (Hook. & Arn.) A. Nelson & J.F. Macbr.	pointed cryptantha
Arctostaphylos pungens Kunth	pointleaf manzanita
Pinus ponderosa Lawson & C. Lawson	Ponderosa Pine
Diodia teres Walter	Poorjoe
Aristida divaricata Humb. & Bonpl. ex Willd.	poverty threeawn
Acaciella angustissima (Mill.) Britton & Rose	Prairie Acacia
Koeleria macrantha (Ledeb.) Schult.	Prairie Junegrass
Tradescantia occidentalis (Britton) Smyth	Prairie Spiderwort
Helianthus petiolaris Nutt.	Prairie Sunflower
Aristida oligantha Michx.	Prairie Threeawn
Sphenopholis obtusata (Michx.) Scribn.	Prairie Wedgescale
Thymophylla acerosa (DC.) Strother	pricklyleaf dogweed
Arctostaphylos pringlei Parry	Pringle manzanita
Jacquemontia pringlei A. Gray	Pringle's clustervine
Plagiobothrys pringlei Greene	Pringle's popcornflower
Eriophyllum pringlei A. Gray	Pringle's woolly sunflower
Astragalus nutans M.E. Jones	Providence Mountain milkvetch
Salvia dorrii (Kellogg) Abrams	purple sage
Abronia angustifolia Greene	Purple Sand Verbena
Aristida purpurea Nutt.	Purple Threeawn
Nama demissum A. Gray	purplemat
Eschscholzia minutiflora S. Watson	pygmy poppy
Stillingia linearifolia S. Watson	queen's-root
Juncus dubius Engelm.	questionable rush
Oxalis albicans Kunth	radishroot woodsorrel
Crossosoma bigelovii S. Watson	ragged rockflower
Trifolium albopurpureum Torr. & A. Gray	rancheria clover
Acamptopappus sphaerocephalus (Harv. & A. Gray ex A. Gray) A. Gray	rayless goldenhead
Mahonia haematocarpa (Wooton) Fedde	red barberry
Festuca rubra L.	Red Fescue
Bouteloua trifida Thurb.	red grama
Tephrosia vicioides Schtdl.	red hoarypea
Centrostegia thurberi A. Gray ex Benth.	red triangles
Salix laevigata Bebb	red willow
Eremocarya micrantha (Torr.) Greene	Red-Root Alley Cat's-Eye
Juniperus coahuilensis (Martínez) Gaussen ex R.P. Adams	Redberry Juniper
Cyperus erythrorhizos Muhl.	redroot flatsedge
Plantago rhodosperma Decne.	redseed plantain
Echinomastus erectocentrus (J.M. Coult.) Britton & Rose	redspine fishhook cactus
Polanisia dodecandra (L.) DC.	redwhisker clammyweed
Brickellia baccharidea A. Gray	resinleaf brickellbush
Leersia oryzoides (L.) Sw.	rice cutgrass
Acmispon haydonii (Orcutt) Brouillet	Rock Bird's-Foot Trefoil
Gilia scopulorum M.E. Jones	rock gilia
Ribes quercetorum Greene	rock gooseberry
Eucnide rupestris (Baill.) H.J. Thomp. & Ernst	rock nettle
Phacelia rupestris Greene	rock phacelia
Salvia pinguifolia (Fernald) Wooton & Standl.	rock sage
Juncus saximontanus A. Nelson	Rocky Mountain rush
Heterotheca fulcrata (Greene) Shinners	rockyscree false goldenaster
Clematis pauciflora Nutt.	ropevine clematis
Coursetia glandulosa A. Gray	rosary babybonnets
Gilia sinuata Douglas ex Benth.	Rosy Gilia
Rivina humilis L.	rougeplant
Xanthium strumarium L.	rough cocklebur
Ephedra aspera Engelm. ex S. Watson	rough jointfir
Menodora scabra A. Gray	rough menodora
Shepherdia rotundifolia Parry	roundleaf buffaloberry
Mimulus glabratus Kunth	roundleaf monkeyflower
Oxytheca perfoliata Torr. & A. Gray	roundleaf oxytheca
Phacelia rotundifolia Torr. ex S. Watson	roundleaf phacelia
Symphoricarpos rotundifolius A. Gray	roundleaf snowberry
Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm.	roving sailor
Thamnosma texana (A. Gray) Torr.	rue of the mountains
Erigeron tracyi Greene	Running Fleabane
Pectis rusbyi Greene ex A. Gray	Rusby's chinchweed
Asclepias subulata Decne.	rush milkweed
Nolina microcarpa S. Watson	sacahuista
Datura wrightii Regel	Sacred Thorn-Apple
Pectocarya linearis (Ruiz & Pav.) DC.	sagebrush combseed
Stuckenia pectinata (L.) Börner	Sago Pondweed
Carnegiea gigantea (Engelm.) Britton & Rose	Saguaro
Atriplex dioica Raf.	Saline Saltbush
Heliotropium curassavicum L.	salt heliotrope
Distichlis spicata (L.) Greene	Saltgrass
Baccharis douglasii DC.	Saltmarsh Baccharis
Chloropyron maritimum Chloropyron maritimum	Saltmarsh Bird's-beak
Cuscuta salina Engelm.	saltmarsh dodder
Astragalus crotalariae (Benth.) A. Gray	Salton milkvetch
Eschscholzia hypecoides Benth.	San Benito poppy
Symphyotrichum defoliatum (Parish) G.L. Nesom	San Bernardino aster
Diplacus aridus Abrams	San Diego bush monkeyflower
Adenophyllum porophylloides (A. Gray) Strother	San Felipe dogweed
Graptopetalum rusbyi (Greene) Rose	San Francisco River leatherpetal
Mentzelia pectinata Kellogg	San Joaquin blazingstar
Gutierrezia californica (DC.) Torr. & A. Gray	San Joaquin snakeweed
Desmodium batocaulon A. Gray	San Pedro ticktrefoil
Sporobolus cryptandrus (Torr.) A. Gray	sand dropseed
Thysanocarpus curvipes Hook.	sand fringepod
Crassula connata (Ruiz & Pav.) A. Berger	Sand Pygmyweed
Eleocharis montevidensis Kunth	sand spikerush
Poa secunda J. Presl	Sandberg Bluegrass
Erysimum capitatum (Douglas ex Hook.) Greene	Sanddune Wallflower
Pholisma sonorae (Torr. ex A. Gray) Yatsk.	sandfood
Jatropha cardiophylla (Torr.) Müll. Arg.	sangre de cristo
Zeltnera nudicaulis (Engelm.) G.Mans.	Santa Catalina Mountain Centaury
Phlox tenuifolia E.E. Nelson	Santa Catalina Mountain phlox
Bouteloua eludens Griffiths	Santa Rita Mountain grama
Eriastrum sapphirinum (Eastw.) H. Mason	sapphire woollystar
Astragalus magdalenae Greene	satiny milkvetch
Anisocoma acaulis Torr. & A. Gray	scalebud
Salvia vaseyi (Porter) Parish	scallopleaf sage
Oenothera suffrutescens (Moc. & Sessé ex Ser.) W.L.Wagner & Hoch	Scarlet Beeblossom
Penstemon centranthifolius (Benth.) Benth.	scarlet bugler
Echinocereus coccineus Engelm.	scarlet hedgehog cactus
Stachys coccinea Ortega	scarlet hedgenettle
Astragalus coccineus Brandegee	scarlet milkvetch
Mimulus cardinalis Douglas ex Benth.	scarlet monkeyflower
Boerhavia coccinea Mill.	scarlet spiderling
Loeseliastrum schottii (Torr.) Timbrook	Schott's calico
Agave schottii Engelm.	Schott's century plant
Psorothamnus schottii (Torr.) Barneby	Schott's dalea
Peucephyllum schottii A. Gray	Schott's pygmycedar
Stephanomeria schottii A. Gray	Schott's wirelettuce
Yucca ×schottii Engelm.	Schott's Yucca
Salix scouleriana Barratt ex Hook.	Scouler's willow
Equisetum hyemale L.	scouringrush horsetail
Corydalis aurea Willd.	scrambled eggs
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi	Scratchgrass
Prosopis pubescens Benth.	screwbean mesquite
Calibrachoa parviflora (Juss.) D'Arcy	Seaside Petunia
Mimulus guttatus DC.	Seep Monkeyflower
Lophocereus schottii (Engelm.) Britton & Rose	Senita Cactus
Atriplex confertifolia (Torr. & Frém.) S. Watson	Shadscale Saltbush
Evolvulus nuttallianus Schult.	shaggy dwarf morning-glory
Lepidium lasiocarpum Nutt.	shaggyfruit pepperweed
Heuchera hirsutissima Rosend., Butters & Lakela	Shaggyhair Alumroot
Astragalus acutirostris S. Watson	sharpkeel milkvetch
Physalis acutifolia (Miers) Sandw.	Sharpleaf Groundcherry
Astragalus nothoxys A. Gray	sheep milkvetch
Mentzelia nitens Greene	shining blazingstar
Lepidium nitidum Nutt.	shining pepperweed
Stellaria nitens Nutt.	Shiny Chickweed
Lupinus brevior (Jeps.) Christian & D. Dunn	short lupine
Symphyotrichum frondosum (Nutt.) G.L. Nesom	short-rayed alkali aster
Baccharis brachyphylla A. Gray	shortleaf baccharis
Myriophyllum sibiricum Kom.	shortspike watermilfoil
Heliomeris multiflora Nutt.	showy goldeneye
Helianthus niveus (Benth.) Brandegee	showy sunflower
Leucosyris carnosa (A.Gray) Greene	Shrubby Alkaliaster
Brickellia frutescens A. Gray	shrubby brickellbush
Acmispon rigidus (Benth.) Brouillet	Shrubby Deervetch
Malvastrum bicuspidatum (S. Watson) Rose	shrubby false mallow
Abutilon abutiloides (Jacq.) Garcke ex Hochr.	shrubby Indian mallow
Portulaca suffrutescens Engelm.	shrubby purslane
Bouteloua curtipendula (Michx.) Torr.	Side-oats Grama
Castilleja lanata A. Gray	Sierra woolly Indian paintbrush
Portulaca halimoides L.	silkcotton purslane
Acmispon procumbens (Greene) Brouillet	Silky Deerweed
Acmispon argophyllus (A.Gray) Brouillet	Silver Bird's-Foot Trefoil
Evolvulus sericeus Sw.	silver dwarf morning-glory
Lupinus albifrons Benth.	silver lupine
Aristida schiedeana Trin. & Rupr.	single threeawn
Fraxinus anomala Torr. ex S. Watson	Singleleaf Ash
Pinus monophylla Torr. & Frém.	Singleleaf Pinyon
Ambrosia monogyra (Torr. & A.Gray) Strother & B.G.Baldwin	Singlewhorl Burrobrush
Vulpia octoflora (Walter) Rydb.	sixweeks fescue
Bouteloua barbata Lag.	sixweeks grama
Aristida adscensionis L.	sixweeks threeawn
Rhus trilobata Nutt.	Skunkbush Sumac
Phacelia coerulea Greene	Skyblue Phacelia
Pectocarya penicillata (Hook. & Arn.) A. DC.	sleeping combseed
Silene antirrhina L.	sleepy silene
Evolvulus alsinoides (L.) L.	slender dwarf morning-glory
Xanthisma gracile (Nutt.) D.R.Morgan & R.L.Hartm.	Slender Goldenweed
Bouteloua repens (Kunth) Scribn. & Merr.	slender grama
Deschampsia elongata (Hook.) Munro	Slender Hairgrass
Janusia gracilis A. Gray	slender janusia
Microsteris gracilis (Hook.) Greene	slender phlox
Porophyllum gracile Benth.	slender poreleaf
Boerhavia triquetra S. Watson	slender spiderling
Eriogonum gracile Benth.	slender woolly buckwheat
Ipomopsis tenuifolia (A. Gray) V.E. Grant	slenderleaf skyrocket
Tridens muticus (Torr.) Nash	slim tridens
Pediomelum tenuiflorum (Pursh) A.N.Egan	Slimflower Scurfpea
Phaseolus filiformis Benth.	slimjim bean
Phaseolus angustissimus A. Gray	slimleaf bean
Teucrium cubense Jacq.	small coastal germander
Vulpia microstachys (Nutt.) Munro	small fescue
Potamogeton pusillus L.	small pondweed
Stephanomeria exigua Nutt.	Small Wirelettuce
Sphaeralcea parvifolia A. Nelson	small-leaf globemallow
Melica imperfecta Trin.	Smallflower Melicgrass
Astragalus nuttallianus DC.	smallflowered milkvetch
Trifolium microcephalum Pursh	smallhead clover
Euphorbia polycarpa Benth.	Smallseed Sandmat
Psorothamnus spinosus (A. Gray) Barneby	smoketree
Malacothrix glabrata (A. Gray ex D.C. Eaton) A. Gray	smooth desertdandelion
Cyperus laevigatus L.	smooth flatsedge
Equisetum laevigatum A. Braun	smooth horsetail
Malacothrix coulteri Harv. & A. Gray	snake's head
Keckiella antirrhinoides (Benth.) Straw	snapdragon penstemon
Yucca elata (Engelm.) Engelm.	soaptree yucca
Dalea mollissima (Rydb.) Munz	soft prairie clover
Schoenoplectus tabernaemontani (C.C. Gmel.) Palla	softstem bulrush
Pectis cylindrica (Fernald) Rydb.	Sonoran chinchweed
Croton sonorae Torr.	Sonoran croton
Malacothrix sonorae W.S. Davis & P.H. Raven	Sonoran desertdandelion
Agastache wrightii (Greenm.) Wooton & Standl.	Sonoran giant hyssop
Gomphrena sonorae Torr.	Sonoran globe amaranth
Abutilon mollicomum (Willd.) Sweet	Sonoran Indian mallow
Argemone gracilenta Greene	Sonoran pricklypoppy
Quercus turbinella Greene	Sonoran scrub oak
Argythamnia brandegeei Millsp.	Sonoran silverbush
Eriogonum polycladon Benth.	sorrel buckwheat
Typha domingensis Pers.	southern cattail
Saltugilia australis (H. Mason & A.D. Grant) L.A. Johnson	southern gilia
Lonicera subspicata Hook. & Arn.	southern honeysuckle
Streptanthus campestris S. Watson	southern jewelflower
Tauschia arguta (Torr. & A. Gray) J.F. Macbr.	southern umbrellawort
Najas guadalupensis (Spreng.) Magnus	southern waternymph
Symphyotrichum expansum (Poepp. ex Spreng.) G.L. Nesom	southwestern annual saltmarsh aster
Argyrochosma limitanea (Maxon) Windham	southwestern false cloak fern
Glandularia gooddingii (Briq.) Solbrig	southwestern mock vervain
Argemone pleiacantha Greene	southwestern pricklypoppy
Sphaeralcea hastulata A. Gray	spear globemallow
Matelea parvifolia (Torr.) Woodson	spearleaf
Brickellia atractyloides A. Gray	spearleaf brickellbush
Wislizenia refracta Engelm.	Spectacle Fruit

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