Genus names beginning with T:
107 genera
330 species
38 subspecies and varieties
330 species
38 subspecies and varieties
Show only taxa with photos
Taeniatherum – medusahead (1 species)
Tamarix – saltcedar (3 species)
Tamarix – tamarisk (3 species)
Tanacetum – tansy (4 species)
Tapinella (2 species)
Taraxacum – dandelion (5 species)
Taraxia – goldeneggs (2 species)
Targionia (1 species)
Tarzetta (2 species)
Tatraea (1 species)
Tauschia – tauschia (1 species)
Taxus – yew (2 species)
Teesdalia – shepherd's cress (1 species)
Tellima – fringecup (1 species)
Tephromela (1 species)
Tetradymia – horse-brush (1 species)
Tetralophozia (1 species)
Tetramelas (1 species)
Teucrium – germander (1 species)
Teucrium – wood sage (1 species)
Texosporium (1 species)
Thalictrum – meadowrue (3 species)
Thamnolia (2 species)
Thanatephorus (1 species)
Thaxterogaster (2 species)
Thecotheus (1 species)
Thelenella (1 species)
Thelephora (7 species)
Thelidium (1 species)
Thelomma (4 species)
Thelotrema (2 species)
Thelypodium – thelypody (5 species)
Thermopsis – buck-bean (1 species)
Thermopsis – golden-banner (1 species)
Thermopsis – golden-pea (1 species)
Thermopsis – thermopsis (1 species)
Thermutis (1 species)
Thinopyrum – wheatgrass (2 species)
Thlaspi – pennycress (1 species)
Tholurna (1 species)
Thrombium (1 species)
Thuja – arborvitae (1 species)
Thuja – cedar (1 species)
Thymelaea – mezereon (1 species)
Thymelaea – spurge-flax (1 species)
Thymus – thyme (1 species)
Thysanocarpus – fringepod (1 species)
Thysanocarpus – lacepod (1 species)
Tiarella – coolwort (1 species)
Tiarella – foamflower (1 species)
Tiarella – laceflower (1 species)
Tiarella – false mitrewort (1 species)
Tilia – small-leaved linden (1 species)
Tiquilia – crinklemat (1 species)
Tolmiea – pig-a-back-plant (1 species)
Tolmiea – thousand mothers (1 species)
Tolmiea – youth-on-age (1 species)
Tomentella (14 species)
Tomentellopsis (1 species)
Tonella – tonella (2 species)
Tonestus – serpentweed (1 species)
Toninia (5 species)
Torilis – hedge parsley (2 species)
Torreyochloa – false manna grass (1 species)
Townsendia – townsend daisy (1 species)
Townsendia – townsendia (1 species)
Toxicodendron – poison ivy (2 species)
Toxicodendron – poison oak (2 species)
Toxicoscordion – death-camas (2 species)
Toxicoscordion – zigadenus (2 species)
Toxicoscordion – zygadene (2 species)
Tragopogon – goatsbeard (6 species)
Tragopogon – salsify (6 species)
Trametes (5 species)
Trapelia (3 species)
Trapeliopsis (7 species)
Trappea (1 species)
Trautvetteria – false bugbane (1 species)
Trechispora (2 species)
Tremella (5 species)
Tremellodendropsis (1 species)
Tremolecia (1 species)
Triadenum – marsh (1 species)
Triantha – false-asphodel (1 species)
Triantha – tofieldia (1 species)
Tribulus – ground bur-nut (1 species)
Tribulus – land caltrop (1 species)
Tribulus – puncture-vine (1 species)
Trichaptum (3 species)
Trichoglossum (3 species)
Tricholoma (48 species)
Tricholomopsis (6 species)
Trichophaea (2 species)
Trichophorum – deergrass (1 species)
Trichopilus (2 species)
Trichostema – blue-curls (1 species)
Trichostema – trichostema (1 species)
Trifolium – clover (38 species)
Trifolium – trefoil (38 species)
Triglochin – arrow-grass (5 species)
Trillium – trillium (5 species)
Trillium – wake-robin (5 species)
Trimmatothele (1 species)
Triodanis – Venus's looking-glass (1 species)
Triphysaria – false owl-clover (1 species)
Triphysaria – owl-clover (1 species)
Tripidium (1 species)
Triplasis – sandgrass (1 species)
Tripleurospermum – mayweed (1 species)
Trisetum – oatgrass (3 species)
Trisetum – trisetum (3 species)
Triteleia – brodiaea (2 species)
Triteleia – triplet-lily (2 species)
Triteleia – triteleia (2 species)
Triticum – wheat (1 species)
Tritomaria (3 species)
Trollius – globeflower (1 species)
Truncocolumella (1 species)
Tsuga – hemlock (3 species)
Tubaria (3 species)
Tuber (9 species)
Tubulicrinis (2 species)
Tuckermanella (1 species)
Tuckermannopsis (6 species)
Tulasnella (4 species)
Tulipa (0 species)
Tulostoma (7 species)
Turgenia (0 species)
Turritis – towermustard (1 species)
Tussilago – coltsfoot (1 species)
Tylothallia (1 species)
Tympanis (1 species)
Typha – cat-tail (4 species)
Typha – reedmace (4 species)
Typhula (5 species)
Tyromyces (3 species)
