Indigenous Plant Archive
A comprehensive research database of Plains Native plant uses, organized by scientific and common names.
157; Beautiful Alumroot
Heuchera glabella Torr. & A. Gray
190; Indian Turnip; Wild Alfalfa; slimflower scurfpea
Psoralea tenuiflora Pursh var. floribunda (Nutt. ex Torr. & A. Gray) Rydb.
absinthium
Artemisia absinthium L. var. insipida Stechmann
alfalfa
Medicago sativa L.
algarrobo
Prosopis chilensis (Molina) Stuntz
alkali buttercup
Ranunculus cymbalaria Pursh var. typicus L.D. Benson
Alpine Alumroot; Round Leaved Alumroot; Alumroot
Heuchera ovalifolia Nutt. ex Torr. & A. Gray var. thompsonii Rosend., Butters & Lakela
alpine golden buckwheat
Eriogonum flavum Nutt.
amberique-bean
Strophostyles helvula (L.) Elliott var. missouriensis (S. Watson) Britton, orth. var.
American basswood
Tilia americana L.
American bittersweet
Celastrus scandens L.
American black currant
Ribes americanum Mill.
American century plant
Agave americana L.
American elm
Ulmus floridana Chapm.
American hazelnut
Corylus americana Walter var. indehiscens Palmer & Steyerm.
American licorice
Glycyrrhiza lepidota Pursh var. glutinosa (Nutt.) S. Watson
American lotus
Nymphaea pentapetala Walter, nom. utique rej.
American plum
Prunus americana Marshall
American pokeweed
Phytolacca americana L.
American star-thistle
Centaurea americana Nutt.
American vetch
Vicia americana Muhl. ex Willd.
annual buckwheat
Eriogonum annuum Nutt.
annual ragweed
Ambrosia artemisiifolia L.
Arrow Grass
Triglochin maritima L. var. elata (Nutt.) A. Gray
arrowleaf balsamroot
Balsamorhiza sagittata (Pursh) Nutt.
arrowleaf ragwort
Senecio triangularis Hook. var. angustifolius G.N. Jones
Atlantic camas
Quamasia hyacinthina (Raf.) Britton
ballhead ipomopsis
Ipomopsis congesta (Hook.) V.E. Grant
ballhead waterleaf
Hydrophyllum capitatum Douglas ex Benth.
balsam poplar
Populus balsamifera L.
Baltic Rush; Wire Rush
Juncus balticus Willd. var. alaskanus (Hultén) A.E. Porsild
Barberry; Creeping Mahonia; Creeping Oregon Grape; creeping barberry
Odostemon repens (Lindl.) Cockerell
barnyardgrass
Panicum crus-galli L.
Bears’ Food; White Flowered Parsley; Northern Idaho biscuitroot
Cogswellia orientalis (J.M. Coult. & Rose) M.E. Jones
Beckwith's violet
Viola beckwithii Torr. & A. Gray
big bluestem
Andropogon provincialis Lam.
big sagebrush
Artemisia tridentata Nutt.
bigbract verbena
Verbena imbricata Wooton & Standl.
Bill Williams Mountain giant hyssop
Agastache pallidiflora (A. Heller) Rydb.
bindweed
Convolvulus L.
biscuitroot
Lomatium roseanum Cronquist
bitter root
Lewisia rediviva Pursh
black elderberry
Sambucus nigra L.
black hawthorn
Crataegus douglasii Lindl. var. douglasii
black medick
Medicago lupulina L. var. glandulosa Neilr.
black oak
Quercus velutina Lam. var. missouriensis Sarg.
black raspberry
Rubus occidentalis L. var. pallidus L.H. Bailey
black walnut
Wallia nigra (L.) Alef.
blackjack oak
Quercus marilandica Münchh.
blanketflower
Gaillardia aristata Pursh
Blue Elderberry
Sambucus simpsonii Rehder ex Sarg.
blue flax
Linum lewisii auct. non Pursh
blue giant hyssop
Agastache anethiodora (Nutt.) Britton
blue grama
Chondrosum oligostachyum (Nutt.) Torr.
blue spruce
Picea pungens Engelm. var. glauca Regel
bluebell bellflower
Campanula sacajaweana M. Peck
bluejacket
Tradescantia reflexa Raf.
boneset
Eupatorium purpureum L. var. maculatum (L.) Darl.
bottle gourd
Lagenaria vulgaris Ser.
boxelder
Acer negundo L.
bractless blazingstar
Mentzelia nuda (Pursh) Torr. & A. Gray
brittle bladderfern
Filix fragilis (L.) Underw.
broadleaf arrowhead
Sagittaria viscosa C. Mohr
broadleaf cattail
Typha latifolia L.
broom snakeweed
Xanthocephalum tenue (Greene) Shinners
Buffalo Currant; Wild Currant
Ribes odoratum H. Wendl.
buffalo grass
Sesleria dactyloides Nutt.
buffalobur nightshade
Solanum cornutum auct. non Lam.
bulbous bittercress
Cardamine rhomboidea (Pers.) DC.
bur oak
Quercus macrocarpa Michx.
bush morning-glory
Ipomoea leptophylla Torr.
button eryngo
Eryngium yuccifolium Michx.
calamus
Acorus calamus L.
California juniper
Sabina californica (Carrière) Antoine
Canada goldenrod
Solidago canadensis L.
Canada wildrye
Elymus robustus Scribn. & J.G. Sm.
Canadian anemone
Anemonidium canadense (L.) Á. Löve & D. Löve
Canadian horseweed
Conyza canadensis (L.) Cronquist
Canadian milkvetch
Astragalus canadensis L.
canaigre dock
Rumex hymenosepalus Torr. var. salinus (A. Nelson) Rech. f.
candle anemone
Anemone cylindrica A. Gray
Carolina desert-chicory
Sitilias caroliniana (Walter) Raf.
Carolina Larkspur
Delphinium virescens Nutt. var. vimineum (D. Don) R.F. Martin
Carolina springbeauty
Claytonia caroliniana Michx.
catnip
Nepeta cataria L.
cattail
Typha L.
Chicadee Plant; Golden Aster
Heterotheca foliosa (Nutt.) Shinners
Chickasaw plum
Prunus angustifolia Marshall
Chinaberrytree
Melia azedarach L. var. umbraculifera Knox
chokecherry
Prunus virginiana L.
clammy groundcherry
Physalis heterophylla Nees
cloaked bulrush
Scirpus atrovirens Willd. var. pallidus Britton
closed bottle gentian
Gentiana andrewsii Griseb.
common buttonbush
Cephalanthus occidentalis L. var. pubescens Raf.
common chickweed
Stellaria media (L.) Vill.
common dandelion
Taraxacum officinale F.H. Wigg.
common evening primrose
Oenothera pycnocarpa Atk. & Bartlett
common hackberry
Celtis occidentalis L. var. occidentalis
common hop
Humulus lupulus L.
common juniper
Juniperus communis L.
common milkweed
Asclepias syriaca L. var. kansana (Vail) Palmer & Steyerm.
common mullein
Verbascum thapsus L.
common pepperweed
Lepidium texanum Buckley
common persimmon
Diospyros virginiana L. var. virginiana
common plantain
Plantago major L. var. scopulorum Fr. & Broberg
common pricklyash
Zanthoxylum americanum Mill.
common sneezeweed
Helenium autumnale L.
common snowberry
Symphoricarpos albus (L.) S.F. Blake
common spikerush
Eleocharis palustris (L.) Roem. & Schult.
common sunflower
Helianthus lenticularis Douglas ex Lindl.
common tansy
Tanacetum vulgare L. var. crispum DC.
common yarrow
Achillea millefolium L.
compassplant
Silphium laciniatum L.
Copper Globemallow
Sphaeralcea emoryi Torr. ex A. Gray var. nevadensis (Kearney) Kearney
corn
Zea mays L.
cous biscuitroot
Lomatium montanum J.M. Coult. & Rose
crabapple
Pyrus ioensis (Alph. Wood) L.H. Bailey
cream milkvetch
Astragalus racemosus Pursh
creeping juniper
Sabina prostrata (Pers.) Antoine
Crested Prickly Poppy; crested pricklypoppy
Argemone platyceras auct. non Link & Otto
Cuman ragweed
Ambrosia rugelii Rydb.
cup plant
Silphium perfoliatum L.
curly dock
Rumex crispus L.
curlycup gumweed
Grindelia squarrosa (Pursh) Dunal
cushion buckwheat
Eriogonum ovalifolium Nutt.
Cusick's aster
Symphyotrichum foliaceum (Lindl. ex DC.) G.L. Nesom var. cusickii (A. Gray) Lesica
cutleaf nightshade
Solanum triflorum Nutt.
Desert False Indigo; false indigo bush
Amorpha virgata Small
devilsclub
Fatsia horrida (Sm.) Benth. & Hook. f. ex W.H. Brewer & S. Watson
disc mayweed
Tanacetum suaveolens (Pursh) Hook.
dog violet
Viola canina L.
dotted blazing star
Liatris punctata Hook.
Douglas' sedge
Carex douglasii Boott
downy gentian
Gentiana puberula auct. non Michx.
downy paintedcup
Castilleja sessiliflora Pursh
Drummond's onion
Allium nuttallii S. Watson
eastern cottonwood
Populus deltoides W. Bartram ex Marshall
eastern daisy fleabane
Stenactis annua (L.) Nees
Eastern Poison Ivy
Toxicodendron vulgare Mill.
eastern redbud
Cercis canadensis L.
eastern redcedar
Juniperus virginiana L.
edible thistle
Cirsium macounii (Greene) Rydb.
elderberry
Sambucus L.
elephanthead lousewort
Pedicularis groenlandica Retz. var. surrecta (Benth.) A. Gray
elkweed
Tesseranthium radiatum Kellogg
eltrot
Heracleum sphondylium L. ssp. montanum (Schleich. ex Gaudin) Briq.
Engelmann spruce
Picea engelmannii Parry ex Engelm.
Everlasting Pea
Lathyrus ornatus Nutt.
false boneset
Brickellia eupatorioides (L.) Shinners
False Box
Pachystima myrsinites (Pursh) Raf., orth. var.
False Solomon’s Seal
Vagnera amplexicaulis (Nutt.) Greene var. glabra (J.F. Macbr.) Abrams
Fendler's horsenettle
Solanum fendleri A. Gray ex Torr.
fernleaf biscuitroot
Lomatium dissectum (Nutt.) Mathias & Constance
fetid marigold
Tagetes papposa Vent.
fewflower meadow-rue
Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey.
fiddleneck
Amsinckia Lehm.
field horsetail
Equisetum calderi B. Boivin
field pennycress
Thlaspi arvense L.
flatspine stickseed
Lappula occidentalis (S. Watson) Greene
flowery phlox
Phlox multiflora A. Nelson
Foothill Sagewort; common wormwood
Artemisia vulgaris L. var. ludoviciana (Nutt.) Kuntze
foxtail barley
Hordeum jubatum L.
fragrant bedstraw
Galium triflorum Michx. var. viridiflorum DC.
fragrant sumac
Rhus aromatica Aiton
fringed grass of Parnassus
Parnassia fimbriata K.D. Koenig
frost grape
Vitis illex L.H. Bailey
frosted mint
Hedeoma incana Torr.
Gairdner's Yampah
Carum gairdneri (Hook. & Arn.) A. Gray
garden lovage
Levisticum paludapifolium Asch.
gardencress pepperweed
Lepidium sativum L.
Gardner's yampah
Perideridia gairdneri (Hook. & Arn.) Mathias
giant angelica
Angelica ampla A. Nelson
giant hyssop
Agastache Clayton ex Gronov.
golden currant
Ribes aureum Pursh
golden prairie clover
Parosela aurea (Nutt. ex Pursh) Britton
golden tickseed
Coreopsis tinctoria Nutt.
goldenseal
Hydrastis canadensis L.
Gooseberry; Inland Gooseberry; Northern Gooseberry
Ribes setosum Lindl.
Gordon's ivesia
Potentilla gordonii (Hook.) Greene
graybark grape
Vitis cinerea (Engelm.) Engelm. ex Millard
Grayleaf Red Raspberry; Red Raspberry
Rubus strigosus Michx. var. canadensis (Richardson) House
greasewood
Sarcobatus vermiculatus (Hook.) Torr. var. baileyi (Coville) Jeps.
great blue lobelia
Lobelia siphilitica L.
great ragweed
Ambrosia trifida L.
greater burdock
Lappa major Gaertn.
green ash
Fraxinus smallii Britton
green comet milkweed
Asclepias viridiflora Raf. var. linearis (A. Gray) Fernald
groundnut
Glycine apios L.
grouse whortleberry
Vaccinium scoparium Leiberg ex Coville
Gulf Coast yucca
Yucca freemanii Shinners
gum bully
Sideroxylon lanuginosum Michx.
Gunnison's mariposa lily
Calochortus gunnisonii S. Watson
hairy false goldenaster
Heterotheca villosa (Pursh) Shinners
hairy four o'clock
Oxybaphus hirsutus (Pursh) Sweet
hairy grama
Bouteloua hirsuta Lag.
hairy rockcress
Arabis hirsuta (L.) Scop.
hardstem bulrush
Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve
Hawthorn
Crataegus oxyacantha L. var. paulii (Rehder) Rehder
heartleaf four o'clock
Oxybaphus nyctagineus (Michx.) Sweet
heartleaf twistflower
Streptanthus cordatus Nutt.
hemlock waterparsnip
Sium suave Walter var. floridanum (Small) C.F. Reed
hoary balsamroot
Balsamorhiza incana Nutt.
hoary fleabane
Erigeron canus A. Gray
hoary verbena
Verbena stricta Vent.
Hobblebush
Viburnum grandifolium Aiton
hollyleaved barberry
Odostemon aquifolium (Pursh) Rydb.
honey mesquite
Prosopis glandulosa Torr.
Illinois bundleflower
Mimosa illinoensis Michx.
Indian blanket
Gaillardia pulchella Foug.
Indian breadroot
Pediomelum Rydb.
Indian potato
Orogenia S. Watson
Indian ricegrass
Stipa hymenoides Roem. & Schult.
Indian tobacco
Nicotiana quadrivalvis Pursh
Indiangrass
Sorghastrum avenaceum (Michx.) Nash
Indianhemp
Apocynum suksdorfii Greene var. angustifolium (Wooton) Woodson
Irish potato
Solanum tuberosum L.
James' buckwheat
Eriogonum jamesii Benth.
James' Holdback
Hoffmannseggia jamesii Torr. & A. Gray
James' nailwort
Paronychia wardii Rydb.
James' telesonix
Saxifraga jamesii Torr.
Jerusalem artichoke
Helianthus tuberosus L. var. subcanescens A. Gray
Johnsongrass
Sorghum miliaceum (Roxb.) Snowden
Junegrass
Koeleria Pers.
juniper polytrichum moss
Polytrichum juniperinum Hedw. var. waghornei Kindb.
kinnikinnick
Uva-Ursi uva-ursi (L.) Britton, nom. inval.
Kinnikinnick
Swida stolonifera (Michx.) Rydb.
large beardtongue
Penstemon bradburii Pursh
large Indian breadroot; Indian Potato; Indian Breadroot
Psoralea esculenta Pursh
leadplant
Amorpha brachycarpa Palmer
leafy spurge
Euphorbia esula L.
leafy wildparsley
Musineum divaricatum (Pursh) Nutt. ex Torr. & A. Gray, orth. var.
lesser burdock
Lappa minor Hill
lilac penstemon
Penstemon gracilis Nutt.
limber pine
Pinus flexilis James var. callahanii Silba
little bluestem
Schizachyrium scoparium (Michx.) Nash ssp. littorale (Nash) Gandhi & Smeins
little hogweed
Portulaca retusa Engelm.
lodgepole pine
Pinus contorta Douglas ex Loudon
longleaf buckwheat
Eriogonum longifolium Nutt.
longleaf groundcherry
Physalis longifolia Nutt.
longleaf phlox
Phlox longifolia Nutt.
longstyle sweetroot
Washingtonia longistylis (Torr.) Britton
low baby's-breath
Psammophiliella muralis (L.) Ikonn.
low mallow
Malva rotundifolia L., nom. utique rej.
low pussytoes
Gnaphalium dimorphum Nutt.
maiden blue eyed Mary
Collinsia tenella (Pursh) Piper
male fern
Dryopteris filix-mas (L.) Schott
mariposa lily
Calochortus Pursh
marsh blue violet
Viola obliqua Hill
marsh elder
Iva xanthifolia Nutt.
Maryland sanicle
Sanicula marilandica L. var. petiolulata Fernald
mat amaranth
Amaranthus graecizans auct. non L.
mat sandbur
Cenchrus carolinianus Walter, nom. utique rej.
Maximilian sunflower
Helianthus dalyi Britton
meadow deathcamas
Zigadenus venenosus S. Watson
meadow garlic
Allium canadense L.
Menzies' larkspur
Delphinium menziesii DC.
mescal bean
Sophora secundiflora (Ortega) Lag. ex DC.
Mexican Hat; Prairie Coneflower; upright prairie coneflower
Rudbeckia columnifera Nutt.
milkweed
Asclepias L.
Missouri gooseberry
Ribes missouriense Nutt. var. ozarkanum Fassett
Missouri gourd
Pepo foetidissima (Kunth) Britton
Missouri ironweed
Vernonia aborigina Gleason
Missouri River willow
Salix torreyana Barratt
moccasin flower
Fissipes hirsuta (Mill.) Farw., nom. utique rej.
mountain ball cactus
Pediocactus simpsonii (Engelm.) Britton & Rose
mountain Indian paintbrush
Castilleja parviflora Bong.
mountain tarweed
Madia glomerata Hook.
nannyberry
Viburnum ×vetteri Zabel
narrowleaf cottonwood
Populus tweedyi Britton
narrowleaf four o'clock
Oxybaphus linearis (Pursh) B.L. Rob. var. subhispidus (Heimerl) Dayton
narrowleaf purple coneflower
Echinacea angustifolia DC.
narrowleaf stoneseed
Lithospermum mandanense Spreng.
narrowleaf willow; Willow
Salix thurberi Rowlee
Nebraska sedge
Carex nebrascensis Dewey
Nevada bulrush
Amphiscirpus nevadensis (S. Watson) Oteng Yeboah
New Jersey tea
Ceanothus intermedius Pursh
nineanther prairie clover
Parosela enneandra (Nutt.) Britton
northern bedstraw
Galium strictum Torr.
Northern Red Oak
Quercus rubra L. var. borealis (Michx. f.) Farw.
northern sweetgrass
Hierochloe hirta (Schrank) Borbás
Nuttall's deathcamas
Toxicoscordion nuttallii (A. Gray) Rydb.
oak
Quercus L.
Ohio buckeye
Aesculus glabra Willd.
Oklahoma plum
Prunus gracilis Engelm. & A. Gray
old man's whiskers
Geum triflorum Pursh
Osage-orange
Toxylon pomiferum Raf.
Pacific Willow
Salix speciosa Nutt., non Host nec Hook. & Arn.
Pale Bastard Toadflax; Sandalwood
Comandra umbellata (L.) Nutt. var. pallida (A. DC.) M.E. Jones
pale dock
Rumex ellipticus Greene
pale purple coneflower
Rudbeckia pallida Nutt.
paper birch
Betula papyrifera Marshall var. occidentalis (Hook.) Sarg.
Parry's agave
Agave parryi Engelm.
Pasqueflower; prairie crocus
Pulsatilla patens (L.) Mill. ssp. hirsutissima (Pursh) Zamels
peachleaf willow
Salix wrightii Andersson
pecan
Hicoria pecan (Marshall) Britton
Peppermint
Mentha dumetorum Schult.
peyote
Lophophora williamsii (Lem. ex Salm-Dyck) J.M. Coult. var. echinata (Croizat) H. Bravo
Philadelphia fleabane
Erigeron philadelphicus L.
Phlox
Phlox gracilis (Hook.) Greene ssp. gracilis
pin cherry
Prunus pensylvanica L. f.
Pinchot's juniper
Juniperus texensis Van Melle
plains milkvetch
Astragalus gilviflorus Sheldon
plains milkweed
Asclepias pumila (A. Gray) Vail
plains pricklypear
Opuntia polyacantha Haw.
plains springparsley
Cymopterus acaulis (Pursh) Raf.
poison hemlock
Conium maculatum L.
ponderosa pine
Pinus ponderosa Lawson & C. Lawson
porcupinegrass
Stipa spartea Trin.
Porter's licorice-root
Ligusticum porteri J.M. Coult. & Rose
post oak
Quercus stellata Wangenh. var. parviloba Sarg.
povertyweed
Iva axillaris Pursh var. robustior Hook.
prairie broomweed
Xanthocephalum dracunculoides (DC.) Shinners
prairie cordgrass
Spartina pectinata Bosc ex Link var. suttiei (Farw.) Fernald
prairie groundsel
Senecio pseudotomentosus Mack. & Bush
prairie ironweed
Vernonia fasciculata Michx.
prairie Junegrass
Koeleria yukonensis Hultén
prairie milkvine
Gonolobus cynanchoides Engelm.
prairie phlox
Phlox andicola E.E. Nelson
prairie rose
Rosa arkansana Porter
prairie sagewort
Artemisia frigida Willd.
prairie sandreed
Vilfa rigida Buckley
prairie tea
Croton monanthogynus Michx.
prairie thermopsis
Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richardson var. arenosa (A. Nelson) Larisey
prairie willow
Salix humilis Marshall
prickly currant
Ribes oxycanthoides L. var. lacustre Pers.
prickly lettuce
Lactuca scariola L.
professor-weed
Galega officinalis L.
Purple Coneflower
Echinacea pallida (Nutt.) Nutt. var. angustifolia (DC.) Cronquist
purple locoweed
Oxytropis lambertii Pursh
purple poppymallow
Callirhoe involucrata (Torr. & A. Gray) A. Gray
purple prairie clover
Dalea purpurea Vent.
purple threeawn
Aristida purpurea Nutt.
quaking aspen
Populus vancouveriana Trel.
Queen Anne's lace
Daucus carota L.
Rabbitbush
Haplopappus bloomeri A. Gray var. sonnei (A. Gray) Greene
red baneberry
Actaea rubra (Aiton) Willd.
red clover
Trifolium pratense L. var. sativum (Mill.) Schreb.
red mulberry
Morus rubra L. var. murrayana (Saar & Galla) Saar
redosier dogwood
Cornus sericea L.
redroot amaranth
Amaranthus retroflexus L. var. salicifolius I.M. Johnst.
redstem stork's bill
Erodium cicutarium (L.) L'Hér. ex Aiton
redwhisker clammyweed
Polanisia dodecandra (L.) DC.
rescuegrass
Festuca unioloides (Willd.) Raspail, non Bromus unioloides Kunth, nom. illeg.
Richardson's alumroot
Heuchera richardsonii R. Br. var. hispidior Rosend., Butters & Lakela
Richardson's geranium
Geranium richardsonii Fisch. & Trautv.
Riddell's ragwort
Senecio spartioides Torr. & A. Gray var. parksii (Cory) Shinners
riverbank grape
Vitis vulpina L. var. syrticola Fernald & Wiegand
Rocky Mountain beeplant
Peritoma serrulata (Pursh) DC.
Rocky Mountain juniper; 199
Sabina scopulorum (Sarg.) Rydb.
Rocky Mountain maple
Acer glabrum Torr.
rose
Rosa L.
rosy pussytoes
Antennaria rosea Greene
rough cocklebur
Xanthium strumarium L.
rough false pennyroyal
Hedeoma hispida Pursh
roundhead lespedeza
Lespedeza capitata Michx. var. vulgaris Torr. & A. Gray
roundleaf greenbrier
Smilax rotundifolia L. var. quadrangularis (Muhl. ex Willd.) Alph. Wood
roundleaf monkeyflower
Mimulus glabratus Kunth
rubber rabbitbrush
Ericameria nauseosa (Pall. ex Pursh) G.L. Nesom & Baird
rush skeletonplant
Lygodesmia juncea (Pursh) D. Don ex Hook.
russet buffaloberry
Lepargyrea canadensis (L.) Greene
sagebrush buttercup
Ranunculus glaberrimus Hook.
sageleaf willow
Salix candida Flueggé ex Willd. var. tomentosa Andersson
sand dropseed
Sporobolus cryptandrus (Torr.) A. Gray var. occidentalis E.K. Jones & Fassett
sand sagebrush
Oligosporus filifolius (Torr.) W.A. Weber
sandbar willow
Salix wheeleri (Rowlee) Rydb.
sandcherry
Prunus pumila L.
Saskatoon serviceberry
Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem.
saw greenbrier
Smilax bona-nox L. var. hederifolia (Bey.) Fernald
scarlet gaura
Gaura odorata Sessé ex Lag.
Scarlet Gilia
Ipomopsis aggregata (Pursh) V.E. Grant var. attenuata (A. Gray) Dorn
scarlet globemallow
Sphaeralcea coccinea (Nutt.) Rydb.
Schweinitz's flatsedge
Mariscus schweinitzii (Torr.) T. Koyama
scouringrush horsetail
Equisetum hyemale L.
Scribner's Rosette Grass
Panicum scribnerianum Nash
sego lily
Calochortus nuttallii Torr. & A. Gray
shagbark hickory
Hicoria ovata (Mill.) Britton
shepherd's purse
Thlaspi bursa-pastoris L.
shortstyle onion
Allium brevistylum S. Watson
Showy Locoweed; Silky Locoweed
Oxytropis splendens Douglas ex Hook. var. vestita Hook.
showy milkweed
Asclepias giffordii Eastw.
showy ticktrefoil
Meibomia canadensis (L.) Kuntze
shrubby cinquefoil
Potentilla fruticosa L.
sideoats grama
Bouteloua curtipendula (Michx.) Torr.
silky cryptantha
Oreocarya sericea (A. Gray) Greene
silky lupine
Lupinus sericeus Pursh
silky prairie clover
Dalea villosa (Nutt.) Spreng.
silky sophora
Vexibia nuttalliana (B.L. Turner) W.A. Weber
silver bluestem
Andropogon saccharoides Sw.
silver buffaloberry
Lepargyrea argentea (Pursh) Greene
silver maple
Argentacer saccharinum (L.) Small
silver sagebrush
Artemisia cana Pursh
silverberry
Elaeagnus argentea Pursh, non Moench
silverleaf Indian breadroot; Wild Alfalfa
Psoralea collina Rydb.
silverleaf nightshade
Solanum elaeagnifolium Cav.
silverweed cinquefoil
Potentilla yukonensis Hultén
skunkbush sumac
Rhus trilobata Nutt.
slender milkvetch
Astragalus gracilis Nutt.
slickseed fuzzybean
Strophostyles pauciflora (Benth.) S. Watson
slimleaf milkweed
Polyotus angustifolius Nutt.
slimpod Venus' looking-glass
Specularia leptocarpa (Nutt.) A. Gray
slippery elm
Ulmus fulva Michx.
sloughgrass
Beckmannia Host
small camas
Camassia quamash (Pursh) Greene
small-leaf pussytoes
Antennaria rhodanthus Suksd.
smallhead sneezeweed
Helenium microcephalum DC.
smooth carrionflower
Nemexia herbacea (L.) Small
smooth horsetail
Hippochaete laevigata (A. Braun) Farw.
smooth Solomon's seal
Polygonatum biflorum (Walter) Elliott
smooth sumac
Rhus glabra L. var. occidentalis Torr.
Sneezeweed
Helenium hoopesii A. Gray
snow on the mountain
Lepadena marginata (Pursh) Nieuwl.
snowball sand verbena
Abronia fragrans Nutt. ex Hook. var. glaucescens A. Nelson
soapweed yucca
Yucca glauca Nutt.
softstem bulrush; bulrush
Schoenoplectus validus (Vahl) Á. Löve & D. Löve ssp. luxurians (Miq.) Soják
Spanish clover
Lotus purshianus Clem. & E.G. Clem. var. helleri (Britton) Isely
spearleaf stonecrop
Sedum lanceolatum Torr.
Spiny Skeletonweed
Stephanomeria spinosa (Nutt.) S. Tomb
spinystar
Escobaria vivipara (Nutt.) Buxbaum
spotted fritillary
Fritillaria gracillima Smiley
spotted ladysthumb
Polygonum puritanorum Fernald
spotted water hemlock
Cicuta maculata L.
star milkvine
Gonolobus biflorus Raf.
stemless Townsend daisy
Townsendia sericea Hook.
sticky currant
Ribes viscosissimum Pursh var. hallii (Jancz.) Jancz.
stickywilly
Galium vaillantii DC.
stiff goldenrod
Oligoneuron rigidum (L.) Small
stiffstem flax
Linum rigidum Pursh
stinging nettle
Urtica dioica L.
subalpine fir
Abies lasiocarpa (Hook.) Nutt.
subalpine fleabane
Erigeron peregrinus (Banks ex Pursh) Greene
subterranean Indian breadroot
Pediomelum hypogaeum (Nutt. ex Torr. & A. Gray) Rydb.
sugar maple
Acer saccharum Marshall
sugarberry
Celtis mississippiensis Bosc
sulphur-flower buckwheat
Eriogonum umbellatum Torr.
sumac
Rhus L.
swamp milkweed
Asclepias incarnata L.
swamp verbena
Verbena hastata L.
sweetcicely
Washingtonia divaricata Britton
sweetclover
Melilotus officinalis (L.) Lam. var. micranthus O.E. Schulz
sweetgrass
Torresia odorata (L.) Hitchc.
switchgrass
Panicum virgatum L.
tall fringed bluebells
Mertensia ciliata (James ex Torr.) G. Don
tall tumblemustard
Norta altissima (L.) Britton
tapertip onion
Allium acuminatum Hook. var. cuspidatum Fernald
tenpetal blazingstar
Nuttallia decapetala (Pursh ex Sims) Greene
Texas croton
Croton texensis (Klotzsch) Müll. Arg.
Texas persimmon
Diospyros texana Scheele
textile onion
Allium reticulatum G. Don var. playanum M.E. Jones
thin paspalum
Paspalum supinum Bosc ex Poir.
toughleaf dogwood
Swida microcarpa (Nash) Small
tower rockcress
Turritis glabra L.
tufted loosestrife
Naumburgia thyrsiflora (L.) Duby
Tufted Love Grass
Poa pectinacea Michx.
twincrest onion
Allium bisceptrum S. Watson
twoneedle pinyon
Pinus cembroides Zucc. var. edulis (Engelm.) Voss
Unknown Plant
Allium sibiricum L.
Unknown Plant
Chrysothamnus nauseosus (Pall. ex Pursh) Britton ssp. bolanderi (A. Gray) H.M. Hall & Clem.
Unknown Plant
Cornus stolonifera Michx. var. occidentalis (Torr. & A. Gray) C.L. Hitchc.
Unknown Plant
Cowania mexicana D. Don var. dubia Brandegee
Unknown Plant
Juniperus sibirica Burgsd.
Unknown Plant
Stipa contracta (B.L. Johnson) W.A. Weber
Unknown Plant
Symphyotrichum subgeminatum (Fernald) G.L. Nesom
Utah honeysuckle
Lonicera utahensis S. Watson
Utah sweetvetch
Hedysarum boreale Nutt.
veiny dock
Rumex venosus Pursh
velvety gaura
Gaura parviflora Douglas ex Lehm. var. typica Munz
violet woodsorrel
Sassia violacea (L.) Holub
Virginia creeper
Vitis quinquefolia (L.) Lam.
Virginia plantain
Plantago virginica L. var. viridescens Fernald
Virginia strawberry
Fragaria virginiana Duchesne
water knotweed
Polygonum amphibium L.
water oak
Quercus nigra L. var. heterophylla (Aiton) Ashe
watercress
Sisymbrium nasturtium-aquaticum L.
watermelon
Citrullus lanatus (Thunb.) Matsum. & Nakai
wavyleaf thistle
Cirsium undulatum (Nutt.) Spreng.
wax currant
Ribes cereum Douglas
western dock
Rumex aquaticus L.
western pearly everlasting
Gnaphalium margaritaceum L.
western poison ivy
Toxicodendron volubile Mill., nom. utique rej.
western redcedar
Thuja plicata Donn ex D. Don
Western Soapberry
Sapindus drummondii Hook. & Arn.
western stoneseed
Lithospermum pilosum Nutt.
western tansymustard
Descurainia pinnata (Walter) Britton
Western Wallflower
Cheirinia aspera (Nutt.) Britton
western wheatgrass
Elytrigia smithii (Rydb.) Nevski var. mollis (Scribn. & J.G. Sm.) Beetle
western white clematis
Clematis ligusticifolia Nutt.
Western Yarrow
Achillea tomentosa Pursh, non L.
white clover
Trifolium repens L. var. atropurpureum hort.
White Gilia
Ipomopsis crebrifolia (Nutt.) Dorn
white milkwort
Polygala alba Nutt. var. suspecta S. Watson
white mulberry
Morus tatarica L.
white penstemon
Penstemon albidus Nutt.
white prairie clover
Dalea candida Michx. ex Willd.
white sagebrush
Artemisia ludoviciana Nutt.
white spruce
Picea canadensis (Mill.) Britton, Sterns & Poggenb.
white water crowfoot
Ranunculus trichophyllus Chaix var. hispidulus (E. Drew) W. Drew
whitebark raspberry
Rubus leucodermis Douglas ex Torr. & A. Gray
whitestem gooseberry
Ribes inerme Rydb.
whorled milkweed
Asclepias verticillata L.
whortleberry
Vaccinium oreophilum Rydb.
wild bergamot
Monarda fistulosa L.
wild chives
Allium schoenoprasum L.
wild cucumber
Sicyos lobata Michx.
wild grape
Vitis vinifera L. ssp. sylvestris (C.C. Gmel.) Hegi
wild mint
Mentha penardii (Briq.) Rydb.
wild onion
Allium ascalonicum L.
wild potato
Solanum jamesii Torr.
wild rice
Unknown
Willow
Salix stagnalis Nutt.
winged pigweed
Kochia atriplicifolia Spreng.
winter squash
Cucurbita maxima Duchesne var. turbaniformis Alef.
witchgrass
Panicum capillare L. var. occidentale Rydb.
wolf lichen
Evernia vulpina (L.) Ach.
Women’s Currant
Ribes inebrians Lindl.
wood lily
Lilium philadelphicum L.
woodbine
Parthenocissus vitacea (Knerr) Hitchc.
woodland draba
Draba nemorosa L. var. leiocarpa Lindbl.
woodland strawberry
Fragaria vesca L.
Woods' rose
Rosa woodsii Lindl.
woolly groundsel
Senecio purshianus Nutt.
woolly plantain
Plantago wyomingensis Gandog.
Yarrow
Achillea subalpina Greene
yellow avalanche-lily
Erythronium grandiflorum Pursh
yellow fritillary
Ochrocodon pudicus (Pursh) Rydb.
yellow nutsedge
Cyperus esculentus L.
yellow pond-lily
Nuphar lutea (L.) Sm.
yellow salsify
Tragopogon major Jacq.
yellow sundrops
Oenothera serrulata Nutt. var. typica Munz