| Scientific Name (Synonyms are indented) |
Common Name |
| Taeniatherum Nevski |
medusahead |
| Taeniatherum caput-medusae (L.) Nevski |
medusahead |
| Elymus caput-medusae L. |
|
| Taeniatherum asperum auct. non (Simonkai) Nevski |
|
| Taeniatherum crinitum (Schreb.) Nevski var. caput-medusae (L.) Wipff |
|
| Tamarix L. |
tamarisk |
| Tamarix aphylla (L.) Karst. |
Athel tamarisk |
| Tamarix articulata Vahl |
|
| Tamarix chinensis Lour. |
five-stamen tamarisk |
| Tamarix juniperina Bunge |
|
| Tamarix pentandra Pall. |
|
| Tamarix parviflora DC. |
smallflower tamarisk |
| Tamarix tetrandra auct. non Pall. |
|
| Tamarix ramosissima Ledeb. |
saltcedar |
| Tanacetum L. |
tansy |
| Tanacetum balsamita L. |
costmary |
| Balsamita major Desf. |
|
| Balsamita major Desf. var. tanacetoides (Boiss.) Moldenke |
|
| Chrysanthemum balsamita (L.) Baill., non L. |
|
| Chrysanthemum balsamita (L.) Baill. var. tanacetoides Boiss. |
|
| Pyrethrum majus (Desf.) Tzvelev |
|
| Tanacetum parthenium (L.) Sch. Bip. |
feverfew |
| Chrysanthemum parthenium (L.) Bernh. |
|
| Matricaria parthenium L. |
|
| Tanacetum vulgare L. |
common tansy |
| Chrysanthemum vulgare (L.) Bernh. |
|
| Tanacetum boreale Fisch. ex DC. |
|
| Tanacetum vulgare L. var. crispum DC. |
|
| Taraxacum F.H. Wigg. |
dandelion |
| Taraxacum lyratum (Ledeb.) DC. |
harp dandelion |
| Taraxacum kamtschaticum Dahlst. |
|
| Taraxacum scopulorum (A. Gray) Rydb. |
|
| Taraxacum sibiricum Dahlst. |
|
| Taraxacum officinale F.H. Wigg. |
common dandelion |
| Taraxacum officinale F.H. Wigg. ssp. ceratophorum (Ledeb.) Schinz ex Thell. |
common dandelion |
| Taraxacum ambigens Fernald |
|
| Taraxacum ambigens Fernald var. flutius Fernald |
|
| Taraxacum amphiphron Böcher |
|
| Taraxacum arctogenum Dahlst. |
|
| Taraxacum brachyceras Dahlst. |
|
| Taraxacum carthamopsis A.E. Porsild |
|
| Taraxacum ceratophorum (Ledeb.) DC. |
|
| Taraxacum dumetorum Greene |
|
| Taraxacum eurylepium Dahlst. |
|
| Taraxacum hyperboreum Dahlst. |
|
| Taraxacum integratum G.E. Haglund |
|
| Taraxacum lacerum Greene |
|
| Taraxacum lapponicum Kihlm. ex Hand.-Maz. |
|
| Taraxacum latispinulosum M.P. Christ. |
|
| Taraxacum laurentianum Fernald |
|
| Taraxacum longii Fernald |
|
| Taraxacum malteanum Dahlst. |
|
| Taraxacum maurolepium G.E. Haglund |
|
| Taraxacum mitratum G.E. Haglund |
|
| Taraxacum multesimum G.E. Haglund |
|
| Taraxacum naevosum Dahlst. |
|
| Taraxacum ovinum Rydb. |
|
| Taraxacum paucisquamosum M. Peck |
|
| Taraxacum pellianum A.E. Porsild |
|
| Taraxacum pseudonorvegicum Dahlst. |
|
| Taraxacum purpuridens Dahlst. |
|
| Taraxacum torngatense Fernald |
|
| Taraxacum trigonolobum Dahlst. |
|
| Taraxacum umbrinum Dahlst. |
|
| Taraxacum officinale F.H. Wigg. ssp. officinale |
common dandelion |
| Leontodon latiloba (DC.) Britton, nom. inq. |
|
| Leontodon taraxacum L., nom. inq., p.p. |
|
| Taraxacum atroglaucum M.P. Christ. |
|
| Taraxacum campylodes G.E. Haglund |
|
| Taraxacum croceum auct. non Dahlst. |
|
| Taraxacum curvidens M.P. Christ. |
|
| Taraxacum cyclocentrum M.P. Christ. |
|
| Taraxacum dahlstedtii Lindb. f. |
|
| Taraxacum davidssonii M.P. Christ. |
|
| Taraxacum devians Dahlst. |
|
| Taraxacum dilutisquameum M.P. Christ. |
|
| Taraxacum firmum Dahlst. |
|
| Taraxacum islandiciforme Dahlst. |
|
| Taraxacum kok-saghyz auct. non Rodin |
|
| Taraxacum latilobum DC., nom. inq. |
|
| Taraxacum officinale F.H. Wigg. ssp. vulgare (Lam.) Schinz & R. Keller, nom. inq. |
|
| Taraxacum officinale F.H. Wigg. var. palustre (Lyons) Blytt p.p. |
|
| Taraxacum palustre (Lyons) Symons var. vulgare (Lam.) Fernald, nom. inq. |
|
| Taraxacum pleniflorum M.P. Christ. |
|
| Taraxacum retroflexum Lindb. f. |
|
| Taraxacum rhodolepis Dahlst. |
|
| Taraxacum undulatum Lindb. f. & Marklund |
|
| Taraxacum vagans G.E. Haglund |
|
| Taraxacum vulgare Lam., nom. inq. |
|
| Taraxacum xanthostigma Lindb. f. |
|
| Taxus L. |
yew |
| Taxus brevifolia Nutt. |
Pacific yew |
| Telesonix Raf. |
brookfoam |
| Telesonix heucheriformis Rydb. |
alumroot brookfoam |
| Boykinia heucheriformis (Rydb.) Rosend. |
|
| Boykinia jamesii (Torr.) Engl. var. heucheriformis (Rydb.) Engl. |
|
| Telesonix jamesii (Torr.) Raf. var. heucheriformis (Rydb.) Bacig. |
|
| Tetracoccus Engelm. ex Parry |
shrubby-spurge |
| Tetracoccus hallii Brandegee |
Hall's shrubby-spurge |
| Halliophytum fasciculatum auct. non (S. Watson) I.M. Johnst. |
|
| Halliophytum fasciculatum (S. Watson) I.M. Johnst. var. hallii (Brandegee) McMinn |
|
| Halliophytum hallii (Brandegee) I.M. Johnst. |
|
| Tetracoccus fasciculatus auct. non (S. Watson) Croizat |
|
| Tetracoccus fasciculatus (S. Watson) Croizat var. hallii (Brandegee) Dressler |
|
| Tetradymia DC. |
horsebrush |
| Tetradymia argyraea Munz & Roos |
striped cottonthorn |
| Tetradymia axillaris A. Nelson |
longspine horsebrush |
| Tetradymia axillaris A. Nelson var. axillaris |
longspine horsebrush |
| Tetradymia axillaris A. Nelson var. longispina (M.E. Jones) Strother |
longspine horsebrush |
| Tetradymia spinosa Hook. & Arn. var. longispina M.E. Jones |
|
| Tetradymia canescens DC. |
spineless horsebrush |
| Tetradymia canescens DC. var. inermis (Rydb.) Payson |
|
| Tetradymia glabrata Torr. & A. Gray |
littleleaf horsebrush |
| Tetradymia nuttallii Torr. & A. Gray |
Nuttall's horsebrush |
| Tetradymia spinosa Hook. & Arn. |
shortspine horsebrush |
| Tetradymia stenolepis Greene |
Mojave cottonthorn |
| Tetradymia tetrameres (S.F. Blake) Strother |
fourpart horsebrush |
| Tetradymia comosa A. Gray ssp. tetrameres S.F. Blake |
|
| Tetraneuris Greene |
four-nerve daisy |
| Tetraneuris acaulis (Pursh) Greene |
stemless four-nerve daisy |
| Tetraneuris acaulis (Pursh) Greene var. arizonica (Greene) K.F. Parker |
Arizona four-nerve daisy |
| Actinea acaulis (Pursh) Spreng. var. arizonica (Greene) S.F. Blake |
|
| Hymenoxys acaulis (Pursh) K.F. Parker var. arizonica (Greene) K.F. Parker |
|
| Teucrium L. |
germander |
| Teucrium canadense L. |
Canada germander |
| Teucrium canadense L. var. occidentale (A. Gray) E.M. McClint. & Epling |
western germander |
| Teucrium boreale E.P. Bicknell |
|
| Teucrium canadense L. ssp. occidentale (A. Gray) W.A. Weber |
|
| Teucrium canadense L. ssp. viscidum (Piper) Roy L. Taylor & MacBryde p.p. |
|
| Teucrium canadense L. var. boreale (E.P. Bicknell) Shinners |
|
| Teucrium occidentale A. Gray |
|
| Teucrium occidentale A. Gray var. boreale (E.P. Bicknell) Fernald |
|
| Thalictrum L. |
meadow-rue |
| Thalictrum alpinum L. |
alpine meadow-rue |
| Thalictrum alpinum L. var. hebetum B. Boivin |
|
| Thalictrum fendleri Engelm. ex A. Gray |
Fendler's meadow-rue |
| Thalictrum fendleri Engelm. ex A. Gray var. fendleri |
Fendler's meadow-rue |
| Thalictrum fendleri Engelm. ex A. Gray var. platycarpum Trel. |
|
| Thalictrum fendleri Engelm. ex A. Gray var. polycarpum Torr. |
Fendler's meadow-rue |
| Thalictrum polycarpum (Torr.) S. Watson |
|
| Thalictrum occidentale A. Gray |
western meadow-rue |
| Thalictrum occidentale A. Gray var. occidentale |
western meadow-rue |
| Thalictrum breitungii B. Boivin |
|
| Thalictrum occidentale A. Gray var. megacarpum (Torr.) H. St. John |
|
| Thalictrum occidentale A. Gray var. palousense H. St. John |
|
| Thalictrum revolutum DC. |
waxyleaf meadow-rue |
| Thalictrum revolutum DC. var. glandulosior B. Boivin |
|
| Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey. |
fewflower meadow-rue |
| Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey. var. saximontanum B. Boivin |
fewflower meadow-rue |
| Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey. var. nevadense B. Boivin |
|
| Thamnosma Torr. & Frém. |
desertrue |
| Thamnosma montana Torr. & Frém. |
turpentinebroom |
| Thelesperma Less. |
greenthread |
| Thelesperma subnudum A. Gray |
Navajo tea |
| Thelesperma subnudum A. Gray var. subnudum |
Navajo tea |
| Thelypodiopsis Rydb. |
tumblemustard |
| Thelypodiopsis vermicularis (S.L. Welsh & Reveal) Rollins |
Great Basin tumblemustard |
| Thelypodium sagittatum (Nutt. ex Torr. & A. Gray) Endl. ex Walp. var. vermiculare S.L. Welsh & Reveal |
|
| Thelypodium Endl. |
thelypody |
| Thelypodium crispum Greene ex Payson |
crisped thelypody |
| Thelypodium flexuosum B.L. Rob. |
nodding thelypody |
| Thelypodium integrifolium (Nutt.) Endl. ex Walp. |
entireleaved thelypody |
| Thelypodium integrifolium (Nutt.) Endl. ex Walp. ssp. affine (Greene) Al-Shehbaz |
entireleaved thelypody |
| Thelypodium integrifolium (Nutt.) Endl. ex Walp. var. affine (Greene) S.L. Welsh & Reveal |
|
| Thelypodium rhomboideum Greene |
|
| Thelypodium integrifolium (Nutt.) Endl. ex Walp. ssp. complanatum Al-Shehbaz |
entireleaved thelypody |
| Thelypodium integrifolium (Nutt.) Endl. ex Walp. var. complanatum (Al-Shehbaz) S.L. Welsh & Reveal |
|
| Thelypodium laciniatum (Hook.) Endl. ex Walp. |
cutleaf thelypody |
| Thelypodium laciniatum (Hook.) Endl. ex Walp. var. streptanthoides (Leiberg ex Piper) Payson |
|
| Thelypodium streptanthoides Leiberg ex Piper |
|
| Thelypodium laxiflorum Al-Shehbaz |
droopflower thelypody |
| Stanleyella wrightii (A. Gray) Rydb. var. tenella (M.E. Jones) Payson |
|
| Thelypodium wrightii A. Gray var. tenellum M.E. Jones |
|
| Thelypodium milleflorum A. Nelson |
manyflower thelypody |
| Thelypodium laciniatum (Hook.) Endl. ex Walp. var. milleflorum (A. Nelson) Payson |
|
| Thelypodium sagittatum (Nutt. ex Torr. & A. Gray) Endl. ex Walp. |
arrow thelypody |
| Thelypodium sagittatum (Nutt. ex Torr. & A. Gray) Endl. ex Walp. ssp. ovalifolium (Rydb.) Al-Shehbaz |
arrow thelypody |
| Thelypodiopsis sagittata (Nutt. ex Torr. & A. Gray) O.E. Schulz var. ovalifolium (Rydb.) S.L. Welsh |
|
| Thelypodium sagittatum (Nutt. ex Torr. & A. Gray) Endl. ex Walp. var. ovalifolium (Rydb.) S.L. Welsh & Reveal |
|
| Thelypodium sagittatum (Nutt. ex Torr. & A. Gray) Endl. ex Walp. ssp. sagittatum |
arrow thelypody |
| Thelypodiopsis sagittata (Nutt. ex Torr. & A. Gray) O.E. Schulz |
|
| Thermopsis R. Br. |
goldenbanner |
| Thermopsis gracilis Howell |
slender goldenbanner |
| Thermopsis gracilis Howell var. ovata (B.L. Rob. ex Piper) M. Mendenhall |
slender goldenbanner |
| Thermopsis montana Nutt. var. ovata (B.L. Rob. ex Piper) H. St. John |
|
| Thermopsis ovata B.L. Rob. ex Piper |
|
| Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richardson var. ovata (B.L. Rob. ex Piper) Isely |
|
| Thermopsis montana Nutt. |
mountain goldenbanner |
| Thermopsis montana Nutt. var. montana |
mountain goldenbanner |
| Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richardson var. montana (Nutt.) Isely |
|
| Thinopyrum A. Löve |
wheatgrass |
| Thinopyrum intermedium (Host) Barkworth & D.R. Dewey |
intermediate wheatgrass |
| Agropyron aucheri Boiss. |
|
| Agropyron ciliatiflorum Roshev. |
|
| Agropyron gentryi Melderis |
|
| Agropyron glaucum (Desf. ex DC.) Roem. & Schult. |
|
| Agropyron intermedium (Host) P. Beauv. |
|
| Agropyron intermedium (Host) P. Beauv. var. trichophorum (Link) Halac. |
|
| Agropyron podperae Nabelek |
|
| Agropyron pulcherrimum Grossh. |
|
| Agropyron trichophorum (Link) K. Richt. |
|
| Elymus hispidus (Opiz) Melderis |
|
| Elymus hispidus (Opiz) Melderis ssp. barbulatus (Schur) Melderis |
|
| Elymus hispidus (Opiz) Melderis var. ruthenicus (Griseb.) Dorn |
|
| Elymus intermedius (Host) P. Beauv. |
|
| Elytrigia intermedia (Host) Nevski |
|
| Elytrigia intermedia (Host) Nevski ssp. barbulata (Schur) A. Löve |
|
| Elytrigia intermedia (Host) Nevski ssp. intermedia |
|
| Elytrigia intermedia (Host) Nevski ssp. trichophora (Link) Tvzel |
|
| Thinopyrum intermedium (Host) Barkworth & D.R. Dewey ssp. barbulatum (Schur) Barkworth & D.R. Dewey |
|
| Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang |
tall wheatgrass |
| Agropyron elongatum (Host) P. Beauv. |
|
| Agropyron varnense (Velen.) Hayek |
|
| Elymus elongatus (Host) Runemark |
|
| Elymus elongatus (Host) Runemark var. ponticus (Podp.) Dorn |
|
| Elymus varnensis (Velen.) Runemark |
|
| Elytrigia elongata (Host) Nevski |
|
| Elytrigia pontica (Podp.) Holub |
|
| Elytrigia pontica (Podp.) Holub ssp. pontica |
|
| Lophopyrum elongatum (Host) A. Löve |
|
| Thlaspi L. |
pennycress |
| Thlaspi arvense L. |
field pennycress |
| Thymophylla Lag. |
pricklyleaf |
| Thymophylla acerosa (DC.) Strother |
pricklyleaf dogweed |
| Dyssodia acerosa DC. |
|
| Thymophylla pentachaeta (DC.) Small |
fiveneedle pricklyleaf |
| Thymophylla pentachaeta (DC.) Small var. belenidium (DC.) Strother |
fiveneedle pricklyleaf |
| Dyssodia belenidium (DC.) Macloskie |
|
| Dyssodia pentachaeta (DC.) B.L. Rob. var. belenidium (DC.) Strother |
|
| Dyssodia thurberi (A. Gray) B.L. Rob. |
|
| Thysanocarpus Hook. |
fringepod |
| Thysanocarpus curvipes Hook. |
sand fringepod |
| Thysanocarpus amplectens Greene |
|
| Thysanocarpus curvipes Hook. var. elegans (Fisch. & C.A. Mey.) B.L. Rob. |
|
| Thysanocarpus curvipes Hook. var. eradiatus Jeps. |
|
| Thysanocarpus curvipes Hook. var. longistylus Jeps. |
|
| Thysanocarpus elegans Fisch. & C.A. Mey. |
|
| Tidestromia Standl. |
honeysweet |
| Tidestromia lanuginosa (Nutt.) Standl. |
woolly tidestromia |
| Cladothrix lanuginosa Nutt. |
|
| Tidestromia oblongifolia (S. Watson) Standl. |
Arizona honeysweet |
| Tiquilia Pers. |
crinklemat |
| Tiquilia canescens (DC.) A.T. Richardson |
woody crinklemat |
| Tiquilia canescens (DC.) A.T. Richardson var. canescens |
woody crinklemat |
| Coldenia canescens DC. |
|
| Coldenia canescens DC. var. subnuda I.M. Johnst. |
|
| Tiquilia canescens (DC.) A.T. Richardson var. pulchella (I.M. Johnst.) A.T. Richardson |
woody crinklemat |
| Coldenia canescens DC. var. pulchella I.M. Johnst. |
|
| Tiquilia latior (I.M. Johnst.) A.T. Richardson |
matted crinklemat |
| Coldenia hispidissima (Torr. & A. Gray) A. Gray var. latior I.M. Johnst. |
|
| Tiquilia nuttallii (Hook.) A.T. Richardson |
Nuttall's crinklemat |
| Coldenia nuttallii Hook. |
|
| Tiquilia palmeri (A. Gray) A.T. Richardson |
Palmer's crinklemat |
| Coldenia palmeri A. Gray |
|
| Tiquiliopsis palmeri (A. Gray) Rydb. |
|
| Tiquilia plicata (Torr.) A.T. Richardson |
fanleaf crinklemat |
| Coldenia plicata (Torr.) Coville |
|
| Tiquilia brevifolia Nutt. ex Torr. var. plicata Torr. |
|
| Tonestus A. Nelson |
serpentweed |
| Tonestus alpinus (L.C. Anderson & Goodrich) G.L. Nesom & D. Morgan |
alpine serpentweed |
| Haplopappus alpinus L.C. Anderson & Goodrich |
|
| Tonestus eximius (H.M. Hall) A. Nelson & J.F. Macbr. |
Lake Tahoe serpentweed |
| Haplopappus eximius H.M. Hall |
|
| Tonestus graniticus (Tiehm & L.M. Shultz) G.L. Nesom & D. Morgan |
granite serpentweed |
| Haplopappus graniticus Tiehm & L.M. Shultz |
|
| Tonestus lyallii (A. Gray) A. Nelson |
Lyall's goldenweed |
| Haplopappus lyallii A. Gray |
|
| Torreyochloa Church |
false mannagrass |
| Torreyochloa erecta (Hitchc.) Church |
spiked false mannagrass |
| Glyceria erecta Hitchc. |
|
| Puccinellia erecta (Hitchc.) Munz |
|
| Torreyochloa pallida (Torr.) Church |
pale false mannagrass |
| Torreyochloa pallida (Torr.) Church var. pauciflora (J. Presl) J.I. Davis |
pale false mannagrass |
| Glyceria otisii Hitchc. |
|
| Glyceria pauciflora J. Presl |
|
| Puccinellia pauciflora (J. Presl) Munz |
|
| Puccinellia pauciflora (J. Presl) Munz var. holmii (Beal) C.L. Hitchc. |
|
| Puccinellia pauciflora (J. Presl) Munz var. microtheca (Buckley) C.L. Hitchc. |
|
| Torreyochloa pauciflora (J. Presl) Church |
|
| Torreyochloa pauciflora (J. Presl) Church var. holmii (Beal) Roy L. Taylor & MacBryde |
|
| Torreyochloa pauciflora (J. Presl) Church var. microtheca (Buckley) Roy L. Taylor & MacBryde |
|
| Townsendia Hook. |
Townsend daisy |
| Townsendia exscapa (Richardson) Porter |
stemless Townsend daisy |
| Aster exscapus Richardson |
|
| Townsendia intermedia Rydb. |
|
| Townsendia sericea Hook. |
|
| Townsendia florifer (Hook.) A. Gray |
showy Townsend daisy |
| Townsendia florifer (Hook.) A. Gray var. watsonii (A. Gray) Cronquist |
|
| Townsendia florifera (Hook.) A. Gray |
|
| Townsendia florifera (Hook.) A. Gray var. watsonii (A. Gray) Cronquist |
|
| Townsendia incana Nutt. |
hoary Townsend daisy |
| Townsendia arizonica A. Gray |
|
| Townsendia jonesii (Beaman) Reveal |
Jones' Townsend daisy |
| Townsendia jonesii (Beaman) Reveal var. jonesii |
Jones' Townsend daisy |
| Townsendia mensana M.E. Jones var. jonesii Beaman |
|
| Townsendia jonesii (Beaman) Reveal var. tumulosa Reveal |
Jones' Townsend daisy |
| Townsendia leptotes (A. Gray) Osterh. |
common Townsend daisy |
| Townsendia sericea Hook. var. leptotes A. Gray |
|
| Townsendia parryi D.C. Eaton |
Parry's Townsend daisy |
| Townsendia scapigera D.C. Eaton |
tufted Townsend daisy |
| Toxicodendron Mill. |
poison oak |
| Toxicodendron diversilobum (Torr. & A. Gray) Greene |
Pacific poison oak |
| Rhus diversiloba Torr. & A. Gray |
|
| Toxicodendron radicans (L.) Kuntze ssp. diversilobum (Torr. & A. Gray) Thorne |
|
| Toxicodendron rydbergii (Small ex Rydb.) Greene |
western poison ivy |
| Rhus radicans L. var. rydbergii (Small ex Rydb.) Rehder |
|
| Rhus radicans L. var. vulgaris (Michx.) DC. |
|
| Rhus toxicodendron L. var. vulgaris Michx. |
|
| Toxicodendron desertorum Lunell |
|
| Toxicodendron radicans (L.) Kuntze var. rydbergii (Small ex Rydb.) Erskine |
|
| Tragia L. |
noseburn |
| Tragia amblyodonta (Müll. Arg.) Pax & K. Hoffm. |
dogtooth noseburn |
| Tragia ramosa Torr. |
branched noseburn |
| Tragia angustifolia Nutt. |
|
| Tragia nepetifolia Cav. var. ramosa (Torr.) Müll. Arg. |
|
| Tragia stylaris Müll. Arg. |
|
| Tragopogon L. |
goatsbeard |
| Tragopogon dubius Scop. |
yellow salsify |
| Tragopogon dubius Scop. ssp. major (Jacq.) Voll. |
|
| Tragopogon major Jacq. |
|
| Tragopogon lamottei Rouy |
Jack-go-to-bed-at-noon |
| Tragopogon orientalis L. |
|
| Tragopogon pratensis L. |
|
| Tragopogon pratensis L. ssp. orientalis (L.) Celak. |
|
| Tragopogon porrifolius L. |
salsify |
| Trianthema L. |
trianthema |
| Trianthema portulacastrum L. |
desert horsepurslane |
| Tribulus L. |
puncturevine |
| Tribulus terrestris L. |
puncturevine |
| Tricardia Torr. ex S. Watson |
tricardia |
| Tricardia watsonii Torr. ex S. Watson |
threehearts |
| Trichoptilium A. Gray |
trichoptilium |
| Trichoptilium incisum (A. Gray) A. Gray |
yellowdome |
| Trichostema L. |
bluecurls |
| Trichostema austromontanum F.H. Lewis |
San Jacinto bluecurls |
| Trichostema austromontanum F.H. Lewis ssp. austromontanum |
San Jacinto bluecurls |
| Tridens Roem. & Schult. |
tridens |
| Tridens muticus (Torr.) Nash |
slim tridens |
| Tridens muticus (Torr.) Nash var. muticus |
slim tridens |
| Triodia mutica (Torr.) Scribn. |
|
| Trifolium L. |
clover |
| Trifolium andersonii A. Gray |
fiveleaf clover |
| Trifolium andersonii A. Gray ssp. andersonii |
fiveleaf clover |
| Trifolium andersonii A. Gray var. andersonii |
|
| Trifolium andersonii A. Gray ssp. beatleyae J.M. Gillett |
Beatley's clover |
| Trifolium andersonii A. Gray var. beatleyae (J.M. Gillett) Isely |
|
| Trifolium andersonii A. Gray ssp. monoense (Greene) J.M. Gillett |
Mono clover |
| Trifolium andersonii A. Gray var. monoense (Greene) Isely |
|
| Trifolium monoense Greene |
|
| Trifolium andinum Nutt. |
Intermountain clover |
| Trifolium andinum Nutt. var. podocephalum Barneby |
Intermountain clover |
| Trifolium beckwithii W.H. Brewer ex S. Watson |
Beckwith's clover |
| Trifolium cyathiferum Lindl. |
cup clover |
| Trifolium eriocephalum Nutt. |
woollyhead clover |
| Trifolium eriocephalum Nutt. ssp. cusickii (Piper) J.M. Gillett |
Cusick's clover |
| Trifolium eriocephalum Nutt. var. cusickii (Piper) J.S. Martin |
|
| Trifolium eriocephalum Nutt. var. harneyense (Howell) McDermott |
|
| Trifolium eriocephalum Nutt. ssp. villiferum (House) J.M. Gillett |
fuzzyleaf clover |
| Trifolium eriocephalum Nutt. var. villiferum (House) J.S. Martin |
|
| Trifolium villiferum House |
|
| Trifolium fragiferum L. |
strawberry clover |
| Trifolium fragiferum L. ssp. bonannii (C. Presl) Soják |
|
| Trifolium gymnocarpon Nutt. |
hollyleaf clover |
| Trifolium gymnocarpon Nutt. ssp. gymnocarpon |
hollyleaf clover |
| Trifolium gymnocarpon Nutt. var. subcaulescens (A. Gray) A. Nelson |
|
| Trifolium nemorale Greene |
|
| Trifolium subcaulescens A. Gray |
|
| Trifolium gymnocarpon Nutt. ssp. plummerae (S. Watson) J.M. Gillett |
Plummer's clover |
| Trifolium gymnocarpon Nutt. var. plummerae (S. Watson) J.S. Martin |
|
| Trifolium plummerae S. Watson |
|
| Trifolium hybridum L. |
alsike clover |
| Trifolium elegans Savi |
|
| Trifolium hybridum L. ssp. elegans (Savi) Asch. & Graebn. |
|
| Trifolium hybridum L. var. elegans (Savi) Boiss. |
|
| Trifolium hybridum L. var. pratense Rabenh. |
|
| Trifolium kingii S. Watson |
King's clover |
| Trifolium kingii S. Watson ssp. macilentum (Greene) J.M. Gillett |
King's clover |
| Trifolium kingii S. Watson var. macilentum (Greene) Isely |
|
| Trifolium macilentum Greene |
|
| Trifolium leibergii A. Nelson & J.F. Macbr. |
Leiberg's clover |
| Trifolium lemmonii S. Watson |
Lemmon's clover |
| Trifolium gymnocarpon Nutt. var. lemmonii (S. Watson) McDermott |
|
| Trifolium longipes Nutt. |
longstalk clover |
| Trifolium longipes Nutt. ssp. hansenii (Greene) J.M. Gillett |
Hansen's clover |
| Trifolium hansenii Greene |
|
| Trifolium longipes Nutt. var. hansenii (Greene) Jeps. |
|
| Trifolium longipes Nutt. var. nevadense Jeps. |
|
| Trifolium longipes Nutt. ssp. reflexum (A. Nelson) J.M. Gillett |
droopflower clover |
| Trifolium longipes Nutt. var. reflexum A. Nelson |
|
| Trifolium oreganum Howell var. rydbergii (Greene) McDermott |
|
| Trifolium rusbyi Greene ssp. reflexum (A. Nelson) D. Heller & Zohary |
|
| Trifolium rydbergii Greene |
|
| Trifolium macrocephalum (Pursh) Poir. |
largehead clover |
| Lupinaster macrocephalus Pursh |
|
| Trifolium macrocephalum (Pursh) Poir. var. caeruleomontanum H. St. John |
|
| Trifolium microcephalum Pursh |
smallhead clover |
| Trifolium monanthum A. Gray |
mountain carpet clover |
| Trifolium monanthum A. Gray ssp. monanthum |
mountain carpet clover |
| Trifolium monanthum A. Gray var. monanthum |
|
| Trifolium monanthum A. Gray ssp. parvum (Kellogg) J.M. Gillett |
mountain carpet clover |
| Trifolium monanthum A. Gray var. caulescens Loja. |
|
| Trifolium monanthum A. Gray var. parvum (Kellogg) McDermott |
|
| Trifolium monanthum A. Gray var. pusillum (Greene) Jeps. |
|
| Trifolium multicaule M.E. Jones |
|
| Trifolium pauciflorum Nutt. var. parvum Kellogg |
|
| Trifolium pusillum Greene |
|
| Trifolium oliganthum Steud. |
fewflower clover |
| Trifolium pauciflorum Nutt. |
|
| Trifolium variegatum Nutt. var. pauciflorum (Nutt.) McDermott |
|
| Trifolium pratense L. |
red clover |
| Trifolium pratense L. var. frigidum auct. non Gaudin |
|
| Trifolium pratense L. var. sativum (Mill.) Schreb. |
|
| Trifolium productum Greene |
Shasta clover |
| Trifolium kingii S. Watson ssp. productum (Greene) D. Heller |
|
| Trifolium kingii S. Watson var. productum (Greene) Jeps. |
|
| Trifolium repens L. |
white clover |
| Trifolium repens L. var. atropurpureum hort. |
|
| Trifolium rollinsii J.M. Gillett |
Rollins' clover |
| Trifolium kingii S. Watson ssp. rollinsii (J.M. Gillett) D. Heller |
|
| Trifolium macilentum Greene var. rollinsii (J.M. Gillett) Barneby |
|
| Trifolium variegatum Nutt. |
whitetip clover |
| Trifolium appendiculatum Loja. |
|
| Trifolium geminiflorum Greene |
|
| Trifolium melananthum Hook. & Arn. |
|
| Trifolium polyodon Greene |
|
| Trifolium trilobatum Jeps. |
|
| Trifolium variegatum Nutt. var. major Loja. |
|
| Trifolium variegatum Nutt. var. melananthum (Hook. & Arn.) Greene |
|
| Trifolium variegatum Nutt. var. rostratum (Greene) C.L. Hitchc. |
|
| Trifolium variegatum Nutt. var. trilobatum (Jeps.) McDermott |
|
| Trifolium wormskioldii Lehm. |
cows clover |
| Lupinaster wormskioldii (Lehm.) C. Presl |
|
| Trifolium fendleri Greene |
|
| Trifolium fimbriatum Lindl. |
|
| Trifolium heterodon Torr. & A. Gray |
|
| Trifolium involucratum Ortega var. fendleri (Greene) McDermott |
|
| Trifolium involucratum Ortega var. fimbriatum (Lindl.) McDermott |
|
| Trifolium involucratum Ortega var. heterodon (Torr. & A. Gray) S. Watson |
|
| Trifolium involucratum Ortega var. kennedianum McDermott |
|
| Trifolium kennedianum (McDermott) A. Nelson & J.F. Macbr. |
|
| Trifolium spinulosum Douglas ex Hook. |
|
| Trifolium willdenovii Spreng. var. fimbriatum (Lindl.) Ewan |
|
| Trifolium willdenovii Spreng. var. kennedianum (McDermott) Ewan |
|
| Trifolium wormskioldii Lehm. var. fimbriatum (Lindl.) Jeps. |
|
| Trifolium wormskioldii Lehm. var. kennedianum (McDermott) Jeps. |
|
| Triglochin L. |
arrowgrass |
| Triglochin maritima L. |
seaside arrowgrass |
| Triglochin elata Nutt. |
|
| Triglochin elatum Nutt., orth. var. |
|
| Triglochin maritima L. var. elata (Nutt.) A. Gray |
|
| Triglochin maritimum L., orth. var. |
|
| Triglochin maritimum L. var. elatum (Nutt.) A. Gray, orth. var. |
|
| Triglochin palustris L. |
marsh arrowgrass |
| Triglochin palustre L., orth. var. |
|
| Tripleurospermum Sch. Bip. |
mayweed |
| Tripleurospermum perforatum (Mérat) M. Lainz |
scentless false mayweed |
| Chamomilla inodora (L.) Gilib. |
|
| Matricaria inodora L. |
|
| Matricaria maritima L. ssp. inodora (L.) Clapham |
|
| Matricaria maritima L. var. agrestis (Knaf) Wilmott |
|
| Matricaria perforata Mérat |
|
| Tripleurospermum inodorum (L.) Sch. Bip. |
|
| Tripterocalyx (Torr.) Hook. |
sandpuffs |
| Tripterocalyx crux-maltae (Kellogg) Standl. |
Lassen sandverbena |
| Abronia crux-maltae Kellogg |
|
| Tripterocalyx micranthus (Torr.) Hook. |
smallflower sandverbena |
| Abronia cycloptera A. Gray |
|
| Abronia micrantha Torr. |
|
| Abronia micrantha Torr. var. pedunculata M.E. Jones |
|
| Tripterocalyx cyclopterus (A. Gray) Standl. |
|
| Tripterocalyx pedunculatus (M.E. Jones) Standl. |
|
| Trisetum Pers. |
oatgrass |
| Trisetum canescens Buckley |
tall trisetum |
| Trisetum cernuum Trin. |
|
| Trisetum cernuum Trin. ssp. canescens (Buckley) Calder & Roy L. Taylor |
|
| Trisetum cernuum Trin. var. canescens (Buckley) Beal |
|
| Trisetum cernuum Trin. var. projectum (Louis-Marie) Beetle |
|
| Trisetum spicatum (L.) K. Richt. var. projectum (Louis-Marie) J.T. Howell |
|
| Trisetum spicatum (L.) K. Richt. |
spike trisetum |
| Aira spicata L. |
|
| Trisetum molle Kunth |
|
| Trisetum montanum Vasey |
|
| Trisetum montanum Vasey var. shearii Louis-Marie |
|
| Trisetum spicatum (L.) K. Richt. ssp. alaskanum (Nash) Hultén |
|
| Trisetum spicatum (L.) K. Richt. ssp. congdonii (Scribn. & Merr.) Hultén |
|
| Trisetum spicatum (L.) K. Richt. ssp. majus (Rydb.) Hultén |
|
| Trisetum spicatum (L.) K. Richt. ssp. molle (Kunth) Hultén |
|
| Trisetum spicatum (L.) K. Richt. ssp. montanum (Vasey) W. Weber |
|
| Trisetum spicatum (L.) K. Richt. ssp. pilosiglume (Fernald) Hultén |
|
| Trisetum spicatum (L.) K. Richt. var. alaskanum (Nash) Malte ex Louis-Marie |
|
| Trisetum spicatum (L.) K. Richt. var. congdonii (Scribn. & Merr.) Hitchc. |
|
| Trisetum spicatum (L.) K. Richt. var. maidenii (Gandog.) Fernald |
|
| Trisetum spicatum (L.) K. Richt. var. majus (Rydb.) Farw. |
|
| Trisetum spicatum (L.) K. Richt. var. molle (Kunth) Beal |
|
| Trisetum spicatum (L.) K. Richt. var. pilosiglume Fernald |
|
| Trisetum spicatum (L.) K. Richt. var. spicatiforme Hultén |
|
| Trisetum spicatum (L.) K. Richt. var. villosissimum (Lange) Louis-Marie |
|
| Trisetum subspicatum (L.) P. Beauv. |
|
| Trisetum triflorum (Bigelow) A. Löve & D. Löve |
|
| Trisetum triflorum (Bigelow) A. Löve & D. Löve ssp. molle (Kunth) A. Löve & D. Löve |
|
| Trisetum villosissimum (Lange) Louis-Marie |
|
| Trisetum wolfii Vasey |
Wolf's trisetum |
| Trisetum brandegei Scribn. |
|
| Triteleia Douglas ex Lindl. |
triteleia |
| Triteleia hyacinthina (Lindl.) Greene |
white brodiaea |
| Brodiaea dissimulata M. Peck |
|
| Brodiaea hyacinthina (Lindl.) Baker |
|
| Brodiaea hyacinthina (Lindl.) Baker var. lactea Baker |
|
| Hesperoscordum hyacinthinum Lindl. |
|
| Triticum L. |
wheat |
| Triticum aestivum L. |
common wheat |
| Triticum hybernum L. |
|
| Triticum macha Dekap. & Menab. |
|
| Triticum sativum Lam. |
|
| Triticum sphaerococcum Percival |
|
| Triticum vulgare Vill. |
|
| Tsuga Carrière |
hemlock |
| Tsuga mertensiana (Bong.) Carrière |
mountain hemlock |
| Typha L. |
cattail |
| Typha angustifolia L. |
narrowleaf cattail |
| Typha angustifolia L. var. calumetensis Peattie |
|
| Typha angustifolia L. var. elongata (Dudley) Wiegand |
|
| Typha domingensis Pers. |
southern cattail |
| Typha angustata Bory & Chaubard |
|
| Typha latifolia L. |
broadleaf cattail |
Site Navigation (Click to View)