| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| TAAS | Taxodium ascendens Brongn. | pond cypress | Taxodiaceae
|
| TADII | Taxodium distichum (L.) L.C. Rich. var. imbricarium (Nutt.) Croom | Taxodium ascendens | Taxodiaceae
|
| TADIN | Taxodium distichum (L.) L.C. Rich. var. nutans (Ait.) Sweet | Taxodium ascendens | Taxodiaceae
|
| TADI2 | Taxodium distichum (L.) L.C. Rich. | bald cypress | Taxodiaceae
|
| TAMU | Taxodium mucronatum Ten. | Montezuma bald cypress | Taxodiaceae
|
| TAXOD | Taxodium L.C. Rich. | bald cypress | Taxodiaceae
|
| TABA80 | Taxus baccata L. | English yew | Taxaceae
|
| TABR2 | Taxus brevifolia Nutt. | Pacific yew | Taxaceae
|
| TACA7 | Taxus canadensis Marsh. | Canada yew | Taxaceae
|
| TACU | Taxus cuspidata Sieb. & Zucc. | Japanese yew | Taxaceae
|
| TAFL | Taxus floridana Nutt. ex Chapman | Florida yew | Taxaceae
|
| TAME2 | Taxus �media Rehder | | Taxaceae
|
| TAXUS | Taxus L. | yew | Taxaceae
|
| TAAC | Tayloria acuminata Hornsch. | acuminate dung moss | Splachnaceae
|
| TAFR3 | Tayloria froelichiana (Hedw.) Mitt. ex Broth. | Froelich's dung moss | Splachnaceae
|
| TAHO4 | Tayloria hornschuchiana (Grev. & Arnott) Broth. | Tayloria hornschuchii | Splachnaceae
|
| TAHO70 | Tayloria hornschuchii (Grev. & Arnott) Broth. | Hornschuch's dung moss | Splachnaceae
|
| TALI2 | Tayloria lingulata (Dicks.) Lindb. | lingulate dung moss | Splachnaceae
|
| TASEF | Tayloria serrata (Hedw.) Bruch & Schimp. in B.S.G. var. flagellaris (Brid.) Bruch & Schimp. in B.S.G. | Tayloria serrata | Splachnaceae
|
| TASET | Tayloria serrata (Hedw.) Bruch & Schimp. in B.S.G. var. tenuis (With.) Bruch & Schimp. in B.S.G. | Tayloria serrata | Splachnaceae
|
| TASE3 | Tayloria serrata (Hedw.) Bruch & Schimp. in B.S.G. | serrate dung moss | Splachnaceae
|
| TASPA | Tayloria splachnoides (Schleich. ex Schwaegr.) Hook. var. acuminata (Hornsch.) H�b. | Tayloria acuminata | Splachnaceae
|
| TASP3 | Tayloria splachnoides (Schleich. ex Schwaegr.) Hook. | splachnoid dung moss | Splachnaceae
|
| TATE6 | Tayloria tenuis (With.) Schimp. | Tayloria serrata | Splachnaceae
|
| TAYLO | Tayloria Hook. | tayloria dung moss | Splachnaceae
|
| TECA8 | Tecoma capensis (Thunb.) Lindl. | cape honeysuckle | Bignoniaceae
|
| TECA9 | Tecoma castanifolia (D. Don) Melchior | chestnutleaf trumpetbush | Bignoniaceae
|
| TEGA2 | Tecoma gaudichaudii DC. | Tecoma castanifolia | Bignoniaceae
|
| TERA | Tecoma radicans (L.) Juss. | Campsis radicans | Bignoniaceae
|
| TERI | Tecoma ricasoliana Tanfani | Podranea ricasoliana | Bignoniaceae
|
| TESTA | Tecoma stans (L.) Juss. ex Kunth var. angustatum Rehd. | Tecoma stans | Bignoniaceae
|
| TEST | Tecoma stans (L.) Juss. ex Kunth | yellow trumpetbush | Bignoniaceae
|
| TECOM | Tecoma Juss. | trumpetbush | Bignoniaceae
|
| TEDE4 | Tecomanthe dendrophila (Blume) K. Schum. | | Bignoniaceae
|
| TECOM2 | Tecomanthe Baill. | tecomanthe | Bignoniaceae
|
| TECA80 | Tecomaria capensis (Thunb.) Spach | Tecoma capensis | Bignoniaceae
|
| TEAM | Tectaria �amesiana A.A. Eat. (pro sp.) | | Dryopteridaceae
|
| TECI | Tectaria cicutaria (L.) Copeland | button fern | Dryopteridaceae
|
| TECO3 | Tectaria coriandrifolia (Sw.) Underwood | Hattie Bauer's halberd fern | Dryopteridaceae
|
| TEES | Tectaria estremeriana Proctor & A.M. Evans | Puerto Rico halberd fern | Dryopteridaceae
|
| TEFI3 | Tectaria fimbriata (Willd.) Proctor & Lourteig | least halberd fern | Dryopteridaceae
|
| TEGA | Tectaria gaudichaudii (Mett.) Maxon | Gaudichaud's halberd fern | Dryopteridaceae
|
| TEHE | Tectaria heracleifolia (Willd.) Underwood | broad halberd fern | Dryopteridaceae
|
| TEIN | Tectaria incisa Cav. | incised halberd fern | Dryopteridaceae
|
| TELO | Tectaria lobata (K. Presl) Morton | Tectaria fimbriata | Dryopteridaceae
|
| TEMA | Tectaria martinicensis (Spreng.) Copeland | Tectaria incisa | Dryopteridaceae
|
| TEMI2 | Tectaria minima Underwood | Tectaria fimbriata | Dryopteridaceae
|
| TEPLC | Tectaria plantaginea (Jacq.) Maxon var. confluens Morton | plantainleaf halberd fern | Dryopteridaceae
|
| TEPL2 | Tectaria plantaginea (Jacq.) Maxon | plantainleaf halberd fern | Dryopteridaceae
|
| TETR | Tectaria trifoliata (L.) Cav. | threeleaf halberd fern | Dryopteridaceae
|
| TECTA | Tectaria Cav. | halberd fern | Dryopteridaceae
|
| TEGR | Tectona grandis L. f. | teak | Verbenaceae
|
| TECTO | Tectona L. f. | tectona | Verbenaceae
|
| TECO7 | Teesdalia coronopifolia (Bergeret) Thellung | lesser shepherdscress | Brassicaceae
|
| TENU | Teesdalia nudicaulis (L.) Ait. f. | barestem teesdalia | Brassicaceae
|
| TEESD | Teesdalia Ait. f. | shepardscress | Brassicaceae
|
| TENE2 | Telaranea nematodes (Gottsche ex Austin) M. Howe | | Lepidoziaceae
|
| TELAR | Telaranea Spruce ex Schiffn. | | Lepidoziaceae
|
| TEHE5 | Telesonix heucheriformis Rydb. | alumroot brookfoam | Saxifragaceae
|
| TEJAH | Telesonix jamesii (Torr.) Raf. var. heucheriformis (Rydb.) Bacig. | Telesonix heucheriformis | Saxifragaceae
|
| TEJA | Telesonix jamesii (Torr.) Raf. | James' telesonix | Saxifragaceae
|
| TELES2 | Telesonix Raf. | brookfoam | Saxifragaceae
|
| TEOC2 | Telfairia occidentalis Hook. f. | oysternut | Cucurbitaceae
|
| TEPE2 | Telfairia pedata (Smith ex Sims) Hook. | oysternut | Cucurbitaceae
|
| TELFA | Telfairia Hook. | telfairia | Cucurbitaceae
|
| TECA11 | Teline canariensis (L.) Webb & Berth. | Genista canariensis | Fabaceae
|
| TELI4 | Teline linifolia (L.) Webb & Berth. | Genista linifolia | Fabaceae
|
| TEMO | Teline monspessulana (L.) K. Koch | Genista monspessulana | Fabaceae
|
| TEAL | Teliostachya alopecuroidea (Vahl) Nees | pata de gallina | Acanthaceae
|
| TELIO | Teliostachya Nees | teliostachya | Acanthaceae
|
| TEGR2 | Tellima grandiflora (Pursh) Dougl. ex Lindl. | bigflower tellima | Saxifragaceae
|
| TEOD | Tellima odorata T.J. Howell | Tellima grandiflora | Saxifragaceae
|
| TELLI | Tellima R. Br. | tellima | Saxifragaceae
|
| TEAR6 | Teloschistes arcticus Zahlbr. | | Teloschistaceae
|
| TECA17 | Teloschistes californicus Sipman | | Teloschistaceae
|
| TECA14 | Teloschistes candelaris (L.) Fink | Xanthoria candelaria | Teloschistaceae
|
| TECH2 | Teloschistes chrysophthalmus (L.) Th. Fr. | | Teloschistaceae
|
| TECO8 | Teloschistes contortuplicatus (Ach.) Clauzade & Rondon ex Vezda | | Teloschistaceae
|
| TEEU | Teloschistes euplocus (Tuck.) Zahlbr. | Speerschneidera euploca | Bacidiaceae
|
| TEEX2 | Teloschistes exilis (Michaux) Vainio | | Teloschistaceae
|
| TEFL4 | Teloschistes flavicans (Sw.) Norman | | Teloschistaceae
|
| TEPA2 | Teloschistes parietinus (L.) Norman | Xanthoria parietina | Teloschistaceae
|
| TEPO3 | Teloschistes polycarpus (Hoffm.) Tuck. | Xanthoria polycarpa | Teloschistaceae
|
| TERA3 | Teloschistes ramulosus Tuck. | Xanthoria ramulosa | Teloschistaceae
|
| TEVI5 | Teloschistes villosus auct. | Teloschistes californicus | Teloschistaceae
|
| TELOS | Teloschistes Norman | teloschistes | Teloschistaceae
|
| TEAF2 | Telosma africana (N. E. Br.) N. E. Br. | African telosma | Asclepiadaceae
|
| TELOS2 | Telosma Cov. | telosma | Asclepiadaceae
|
| TEAM3 | Teloxys ambrosioides (L.) W.A. Weber | Chenopodium ambrosioides var. ambrosioides | Chenopodiaceae
|
| TEAR5 | Teloxys aristata (L.) Moq. | Chenopodium aristatum | Chenopodiaceae
|
| TEBO2 | Teloxys botrys (L.) W.A. Weber | Chenopodium botrys | Chenopodiaceae
|
| TEGR4 | Teloxys graveolens (Willd.) W.A. Weber | Chenopodium graveolens | Chenopodiaceae
|
| TEMU3 | Teloxys multifida (L.) W.A. Weber | Chenopodium multifidum | Chenopodiaceae
|
| TEPU3 | Teloxys pumilio (R. Br.) W.A. Weber | Chenopodium pumilio | Chenopodiaceae
|
| TEVA | Teloxys vagans (Standl.) W.A. Weber | Chenopodium ambrosioides var. ambrosioides | Chenopodiaceae
|
| TEAG60 | Tephromela aglaea (Sommerf.) Hertel & Rambold | | Bacidiaceae
|
| TEAG2 | Tephromela aglaeida (Nyl.) | | Bacidiaceae
|
| TEAR60 | Tephromela armeniaca (DC.) Hertel & Rambold | | Bacidiaceae
|
| TEAT60 | Tephromela atra (Hudson) Hafellner | | Bacidiaceae
|
| TETE7 | Tephromela testaceoatra (Vainio) Hertel & Rambold | | Bacidiaceae
|
| TEPHR2 | Tephromela Choisy | tephromela | Bacidiaceae
|