Tagetes patula --- French marigold
Talinum parviflorum --- sunbright
Tamarix chinensis --- fivestamen tamarisk
Tanacetum parthenium --- feverfew
Tanacetum vulgare --- common tansy
Taraxacum eriophorum --- woolbearing dandelion
Taraxacum laevigatum --- rock dandelion
Taraxacum lyratum --- harp dandelion
Taraxacum officinale --- common dandelion
Taraxacum officinale ssp. ceratophorum --- common dandelion
Taraxacum officinale ssp. officinale --- common dandelion
Taraxacum officinale ssp. vulgare --- common dandelion
Telesonix heucheriformis --- alumroot brookfoam
Tephroseris lindstroemii --- fuscate groundsel
Tetradymia canescens --- spineless horsebrush
Tetradymia nuttallii --- Nuttall's horsebrush
Tetradymia spinosa --- shortspine horsebrush
Tetraneuris acaulis --- stemless four-nerve daisy
Tetraneuris acaulis var. acaulis --- stemless four-nerve daisy
Tetraneuris acaulis var. arizonica --- Arizona four-nerve daisy
Tetraneuris acaulis var. caespitosa --- caespitose four-nerve daisy
Tetraneuris acaulis var. epunctata --- stemless four-nerve daisy
Tetraneuris grandiflora --- graylocks four-nerve daisy
Tetraneuris torreyana --- Torrey's four-nerve daisy
Teucrium canadense --- Canada germander
Teucrium canadense var. occidentale --- western germander
Thalictrum alpinum --- alpine meadow-rue
Thalictrum dasycarpum --- purple meadow-rue
Thalictrum fendleri --- Fendler's meadow-rue
Thalictrum fendleri var. fendleri --- Fendler's meadow-rue
Thalictrum occidentale --- western meadow-rue
Thalictrum revolutum --- waxyleaf meadow-rue
Thalictrum sparsiflorum --- fewflower meadow-rue
Thalictrum sparsiflorum var. saximontanum --- fewflower meadow-rue
Thalictrum venulosum --- veiny meadow-rue
Thelesperma caespitosum --- low greenthread
Thelesperma filifolium --- stiff greenthread
Thelesperma filifolium var. intermedium --- stiff greenthread
Thelesperma megapotamicum --- Hopi tea greenthread
Thelesperma pubescens --- hairy greenthread
Thelesperma subnudum --- Navajo tea
Thelesperma subnudum var. marginatum --- Navajo tea
Thelypodiopsis elegans --- Westwater tumblemustard
Thelypodium integrifolium --- entireleaved thelypody
Thelypodium integrifolium ssp. integrifolium --- entireleaved thelypody
Thelypodium paniculatum --- northwestern thelypody
Thelypodium sagittatum --- arrow thelypody
Thelypodium sagittatum ssp. sagittatum --- arrow thelypody
Thermopsis divaricarpa --- spreadfruit goldenbanner
Thermopsis montana --- mountain goldenbanner
Thermopsis montana var. montana --- mountain goldenbanner
Thermopsis rhombifolia --- prairie thermopsis
Thinopyrum intermedium --- intermediate wheatgrass
Thinopyrum ponticum --- rush wheatgrass
Thlaspi arvense --- field pennycress
Thlaspi montanum --- alpine pennycress
Thlaspi montanum var. montanum --- alpine pennycress
Thlaspi parviflorum --- meadow pennycress
Tiquilia nuttallii --- Nuttall's crinklemat
Tofieldia glutinosa ssp. montana --- sticky tofieldia
Tonestus lyallii --- Lyall's goldenweed
Tonestus pygmaeus --- pygmy goldenweed
Torreyochloa pallida --- pale false mannagrass
Torreyochloa pallida var. fernaldii --- Fernald's false mannagrass
Torreyochloa pallida var. pauciflora --- pale false mannagrass
Townsendia alpigena --- Wyoming Townsend daisy
Townsendia alpigena var. alpigena --- Wyoming Townsend daisy
Townsendia condensata --- cushion Townsend daisy
Townsendia condensata var. anomala --- cushion Townsend daisy
Townsendia condensata var. condensata --- cushion Townsend daisy
Townsendia exscapa --- stemless Townsend daisy
Townsendia florifera --- showy Townsend daisy
Townsendia grandiflora --- largeflower Townsend daisy
Townsendia hookeri --- Hooker's Townsend daisy
Townsendia incana --- hoary Townsend daisy
Townsendia leptotes --- common Townsend daisy
Townsendia microcephala --- smallheaded Townsend daisy
Townsendia nuttallii --- Nuttall's Townsend daisy
Townsendia parryi --- Parry's Townsend daisy
Townsendia spathulata --- sword Townsend daisy
Townsendia strigosa --- hairy Townsend daisy
Toxicodendron rydbergii --- western poison ivy
Tradescantia bracteata --- longbract spiderwort
Tradescantia occidentalis --- prairie spiderwort
Tradescantia occidentalis var. occidentalis --- prairie spiderwort
Tragopogon dubius --- yellow salsify
Tragopogon miscellus --- Moscow salsify
Tragopogon porrifolius --- salsify
Tragopogon pratensis --- Jack-go-to-bed-at-noon
Trautvetteria caroliniensis --- Carolina bugbane
Trautvetteria caroliniensis var. occidentalis --- western bugbane
Tribulus terrestris --- puncturevine
Trichophorum pumilum --- Rolland's bulrush
Trifolium andinum --- Intermountain clover
Trifolium andinum var. andinum --- Intermountain clover
Trifolium dasyphyllum --- alpine clover
Trifolium dasyphyllum ssp. anemophilum --- alpine clover
Trifolium dasyphyllum ssp. dasyphyllum --- alpine clover
Trifolium dasyphyllum ssp. uintense --- Uinta clover
Trifolium fragiferum --- strawberry clover
Trifolium gymnocarpon --- hollyleaf clover
Trifolium gymnocarpon ssp. gymnocarpon --- hollyleaf clover
Trifolium gymnocarpon ssp. plummerae --- Plummer's clover
Trifolium haydenii --- Hayden's clover
Trifolium haydenii var. barnebyi --- Barneby's clover
Trifolium haydenii var. haydenii --- Hayden's clover
Trifolium hybridum --- alsike clover
Trifolium longipes --- longstalk clover
Trifolium longipes ssp. reflexum --- droopflower clover
Trifolium nanum --- dwarf clover
Trifolium parryi --- Parry's clover
Trifolium parryi ssp. montanense --- Parry's clover
Trifolium parryi ssp. parryi --- Parry's clover
Trifolium pratense --- red clover
Trifolium repens --- white clover
Trifolium wormskioldii --- cows clover
Triglochin maritimum --- seaside arrowgrass
Triglochin palustre --- marsh arrowgrass
Trillium ovatum --- Pacific trillium
Trillium ovatum ssp. ovatum --- Pacific trillium
Triodanis holzingeri --- Holzinger's Venus' looking-glass
Triodanis leptocarpa --- slimpod Venus' looking-glass
Triodanis perfoliata --- clasping Venus' looking-glass
Triodanis perfoliata var. perfoliata --- clasping Venus' looking-glass
Tripleurospermum perforata --- scentless false mayweed
Tripterocalyx micranthus --- smallflower sandverbena
Trisetum canescens --- tall trisetum
Trisetum spicatum --- spike trisetum
Trisetum wolfii --- Wolf's trisetum
Triteleia grandiflora --- largeflower triteleia
Triteleia grandiflora var. grandiflora --- largeflower triteleia
Triticum aestivum --- common wheat
Trollius laxus --- American globeflower
Trollius laxus ssp. albiflorus --- American globeflower
Typha angustifolia --- narrowleaf cattail
Typha domingensis --- southern cattail
Typha ×glauca
Typha latifolia --- broadleaf cattail

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