Forbs and Subshrubs
Solanum heterodoxum
melonleaf nightshade
Solanum jamesii
wild potato
Solanum rostratum
buffalobur nightshade
Solanum triflorum
cutleaf nightshade
Solanum xanti
chaparral nightshade
Solidago altissima
Canada goldenrod
Solidago canadensis
shorthair goldenrod
Solidago missouriensis
Missouri goldenrod
Solidago velutina
threenerve goldenrod
Solidago wrightii
Wright's goldenrod
Sonchus asper
spiny sowthistle
Sonchus oleraceus
common sowthistle
Sophora nuttalliana
silky sophora
Spergularia salina
salt sandspurry
Sphaeralcea ambigua
desert globemallow
Sphaeralcea angustifolia
copper globemallow
Sphaeralcea emoryi
Emory's globemallow
Sphaeralcea fendleri
Fendler's globemallow
Sphaeralcea grossulariifolia
gooseberryleaf globemallow
Sphaeralcea hastulata
spear globemallow
Sphaeralcea laxa
caliche globe mallow
Sphaeralcea parvifolia
small-flowered globe mallow
Sphaeralcea rusbyi
Rusby's globemallow
Stachys coccinea
scarlet hedgenettle
Stachys rothrockii
Rothrock's hedgenettle
Stanleya pinnata
desert princesplume
Stephanomeria minor
lesser wirelettuce
Stephanomeria pauciflora
brownplume wirelettuce
Stevia micrantha
annual candyleaf
Stevia plummerae
Plummmer's candyleaf
Streptanthus cordatus
heartleaf twistflower
Stuckenia pectinata
sago pondweed
Stylocline gnaphalioides
mountain neststraw
Stylocline micropoides
woollyhead neststraw
Suaeda moquinii
Mojave seablite
Symphyotrichum divaricatum
southern saltmarsh aster
Symphyotrichum ericoides
white heath aster
Symphyotrichum expansum
Southwestern annual saltmarsh
Symphyotrichum falcatum
white prairie aster
Symphyotrichum lanceolatum
white panicle aster
Taraxacum laevigatum
rock dandelion
Taraxacum officinale
common dandelion
Tetraclea coulteri
Coulter's wrinklefruit
Tetraneuris acaulis
stemless four-nerve daisy
Tetraneuris verdiensis
Verde four-nerve daisy
Teucrium canadense
Canada germander
Thalictrum fendleri
Fendler's meadow-rue
Thamnosma texana
rue of the mountains
Thelesperma megapotamicum
Hopi tea greenthread
Thelypodiopsis ambigua
Long Valley tumblemustard
Thelypodium wrightii
Wright's thelypody
Thermopsis divaricarpa
spreadfruit goldenbanner
Thlaspi montanum
alpine pennygrass
Thymophylla acerosa
pricklyleaf dogweed
Thymophylla pentachaeta
fiveneedle pricklyleaf
Thysanocarpus curvipes
sand fringepod
Tidestromia lanuginosa
woolly tidestromia
Tiquilia canescens
woody crinklemat
Townsendia annua
annual Townsend daisy
Townsendia exscapa
stemless Townsend daisy
Townsendia incana
hoary Townsend daisy
Townsendia strigosa
hairy Townsend daisy
Tradescantia occidentalis
prairie spiderwort
Tradescantia pinetorum
pinewoods spiderwort
Tragia nepetifolia
catnip noseburn
Tragia ramosa
branched noseburn
Tragopogon dubius
yellow salsify
Tragopogon porrifolius
salsify
Trianthema portulacastrum
desert horsepurslane
Tribulus terrestris
puncturevine
Trifolium bejariense
Bejar clover
Trifolium gracilentum
pinpoint clover
Trifolium mucronatum
cusp clover
Trifolium repens
white clover
Trifolium variegatum
whitetip clover
Trifolium wormskioldii
cows clover
Triodanis perfoliata
clasping Venus looking-glass
Triteleia lemmoniae
Oak Creek triteleia
Typha domingensis
southern cattail
Typha latifolia
Broadleaf cattail
Urtica dioica
California nettle
Valeriana arizonica
Arizona valerian
Valeriana edulis
tobacco root
Verbascum blattaria
moth mullein
Verbascum thapsus
common mullein
Verbena bracteata
bigbract verbena
Verbena hastata
swamp verbena
Verbena macdougalii
MacDougal verbena
Verbena neomexicana
hillside vervain, New Mexico verbena
Verbena plicata
fanleaf vervain
Verbena scabra
sandpaper vervain
Verbesina encelioides
golden crownbeard
Verbesina longifolia
longleaf crownbeard
Veronica americana
American speedwell
Veronica anagallis-aquatica
water speedwell
Veronica peregrina
neckweed
Veronica polita
gray field speedwell
Vicia americana
American vetch
Vicia ludoviciana
Louisiana vetch
Vicia pulchella
sweetclover vetch