| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| TEMNP2 | Tetraplodon mnioides (Hedw.) Bruch & Schimp. in B.S.G. var. paradoxus (R. Br.) C. Jens. | Tetraplodon paradoxus | Splachnaceae
|
| TEMNU | Tetraplodon mnioides (Hedw.) Bruch & Schimp. in B.S.G. var. urceolatus (Hedw.) Steere in Polunin | Tetraplodon urceolatus | Splachnaceae
|
| TEMN70 | Tetraplodon mnioides (Hedw.) Bruch & Schimp. in B.S.G. | entireleaf nitrogen moss | Splachnaceae
|
| TEPA70 | Tetraplodon pallidus Hag. | pale nitrogen moss | Splachnaceae
|
| TEPA71 | Tetraplodon paradoxus (R. Br.) Hag. | paradox nitrogen moss | Splachnaceae
|
| TEPE3 | Tetraplodon pennsylvanicum (Brid.) Sayre in Grout | Splachnum pennsylvanicum | Splachnaceae
|
| TEUR2 | Tetraplodon urceolatus (Hedw.) Bruch & Schimp. in Schimp. | urceolate nitrogen moss | Splachnaceae
|
| TETRA10 | Tetraplodon Bruch & Schimp. in B.S.G. | nitrogen moss | Splachnaceae
|
| TEBU2 | Tetrapterys buxifolia Cav. | boxleaf | Malpighiaceae
|
| TECI4 | Tetrapterys citrifolia auct. non (Sw.) Pers. | Tetrapterys inaequalis | Malpighiaceae
|
| TEIN5 | Tetrapterys inaequalis Cav. | bejuco de sopla | Malpighiaceae
|
| TETRA21 | Tetrapterys Cav. | tetrapterys | Malpighiaceae
|
| TEVO4 | Tetrastigma voinieranum (Baltet) Pierre ex Gagnep. | | Vitaceae
|
| TETRA23 | Tetrastigma (Miq.) Planch. | tetrastigma | Vitaceae
|
| TEAN2 | Tetrazygia angustifolia (Sw.) DC. | stinkingfish | Melastomataceae
|
| TEBI | Tetrazygia bicolor (P. Mill.) Cogn. | Florida clover ash | Melastomataceae
|
| TEBI2 | Tetrazygia biflora (Cogn.) Urban | Puerto Rico clover ash | Melastomataceae
|
| TECR | Tetrazygia crotonifolia (Desr.) DC. | hillside clover ash | Melastomataceae
|
| TEEL | Tetrazygia elaeagnoides (Sw.) DC. | krekre | Melastomataceae
|
| TEST4 | Tetrazygia stahlii Cogn. | Tetrazygia urbanii | Melastomataceae
|
| TEUR | Tetrazygia urbanii Cogn. | cenizo | Melastomataceae
|
| TETRA7 | Tetrazygia L.C. Rich. ex DC. | clover ash | Melastomataceae
|
| TEBRO | Tetrodontium brownianum (Dicks.) Schwaegr. var. ovatum (Funck) Wijk & Marg. | Tetrodontium ovatum | Tetraphidaceae
|
| TEBR3 | Tetrodontium brownianum (Dicks.) Schwaegr. | Brown's tetrodontium moss | Tetraphidaceae
|
| TEOV | Tetrodontium ovatum (Funck) Schwaegr. | ovate tetrodontium moss | Tetraphidaceae
|
| TERE5 | Tetrodontium repandum (Funck in Sturm) Schwaegr. | tetrodontium moss | Tetraphidaceae
|
| TETRO | Tetrodontium Schwaegr. | tetrodontium moss | Tetraphidaceae
|
| TEPU5 | Tetrorum pusillum (Michx.) Rose | Sedum pusillum | Crassulaceae
|
| TEBO3 | Teucrium boreale Bickn. | Teucrium canadense var. occidentale | Lamiaceae
|
| TEBO | Teucrium botrys L. | cutleaf germander | Lamiaceae
|
| TECAO2 | Teucrium canadense L. ssp. occidentale (Gray) W.A. Weber | Teucrium canadense var. occidentale | Lamiaceae
|
| TECAV2 | Teucrium canadense L. ssp. viscidum (Piper) Taylor & MacBryde p.p. | Teucrium canadense var. occidentale | Lamiaceae
|
| TECAA | Teucrium canadense L. var. angustatum Gray | Teucrium canadense var. canadense | Lamiaceae
|
| TECAB | Teucrium canadense L. var. boreale (Bickn.) Shinners | Teucrium canadense var. occidentale | Lamiaceae
|
| TECAC | Teucrium canadense L. var. canadense | Canada germander | Lamiaceae
|
| TECAH | Teucrium canadense L. var. hypoleucum Griseb. | Canada germander | Lamiaceae
|
| TECAL | Teucrium canadense L. var. littorale (Bickn.) Fern. | Teucrium canadense var. canadense | Lamiaceae
|
| TECAN | Teucrium canadense L. var. nashii (Kearney) Shinners | Teucrium canadense var. hypoleucum | Lamiaceae
|
| TECAO | Teucrium canadense L. var. occidentale (Gray) McClintock & Epling | western germander | Lamiaceae
|
| TECAV | Teucrium canadense L. var. virginicum (L.) Eat. | Teucrium canadense var. canadense | Lamiaceae
|
| TECA3 | Teucrium canadense L. | Canada germander | Lamiaceae
|
| TECUD | Teucrium cubense Jacq. ssp. depressum (Small) McClintock & Epling | Teucrium cubense var. densum | Lamiaceae
|
| TECUL | Teucrium cubense Jacq. ssp. laevigatum (Vahl) McClintock & Epling | Teucrium cubense var. laevigatum | Lamiaceae
|
| TECUC | Teucrium cubense Jacq. var. cubense | small coastal germander | Lamiaceae
|
| TECUD2 | Teucrium cubense Jacq. var. densum Jepson | small coastal germander | Lamiaceae
|
| TECUL2 | Teucrium cubense Jacq. var. laevigatum (Vahl) Shinners | small coastal germander | Lamiaceae
|
| TECU | Teucrium cubense Jacq. | small coastal germander | Lamiaceae
|
| TEDE2 | Teucrium depressum Small | Teucrium cubense var. densum | Lamiaceae
|
| TEFR3 | Teucrium fruticans L. | shrubby germander | Lamiaceae
|
| TEGL2 | Teucrium glandulosum Kellogg | common germander | Lamiaceae
|
| TELA | Teucrium laciniatum Torr. | lacy germander | Lamiaceae
|
| TELI5 | Teucrium littorale Bickn. | Teucrium canadense var. canadense | Lamiaceae
|
| TENA | Teucrium nashii Kearney | Teucrium canadense var. hypoleucum | Lamiaceae
|
| TEOCB | Teucrium occidentale Gray var. boreale (Bickn.) Fern. | Teucrium canadense var. occidentale | Lamiaceae
|
| TEOC | Teucrium occidentale Gray | Teucrium canadense var. occidentale | Lamiaceae
|
| TEOR | Teucrium orientale L. | oriental germander | Lamiaceae
|
| TESC | Teucrium scorodonia L. | woodland germander | Lamiaceae
|
| TEUCR | Teucrium L. | germander | Lamiaceae
|
| TESA | Texosporium santi-jacobi (Tuck.) Nadv. | | Caliciaceae
|
| TEXOS | Texosporium Nadv. | texosporium | Caliciaceae
|
| THNA2 | Thacla natans (Pallas ex Georgi) Deyl & Soj�k | Caltha natans | Ranunculaceae
|
| THHE4 | Thalassia hemprichii Aschers. | thalassia | Hydrocharitaceae
|
| THTE6 | Thalassia testudinum Banks & Soland. ex Koenig | turtlegrass | Hydrocharitaceae
|
| THALA | Thalassia Banks & Soland. ex Koenig | thalassia | Hydrocharitaceae
|
| THCI2 | Thalassodendron ciliatum (Forsk.) den Hartog | | Cymodoceaceae
|
| THALA2 | Thalassodendron Hart. | | Cymodoceaceae
|
| THFA | Thalesia fasciculata (Nutt.) Britt. | Orobanche fasciculata | Orobanchaceae
|
| THLU | Thalesia lutea (Parry) Rydb. | Orobanche fasciculata | Orobanchaceae
|
| THUN3 | Thalesia uniflora (L.) Britt. | Orobanche uniflora | Orobanchaceae
|
| THBA4 | Thalia barbata Small | Thalia dealbata | Marantaceae
|
| THDE | Thalia dealbata Fraser ex Roscoe | powdery alligator-flag | Marantaceae
|
| THGE2 | Thalia geniculata L. | bent alligator-flag | Marantaceae
|
| THTR4 | Thalia trichocalyx Gagnepain | Thalia geniculata | Marantaceae
|
| THALI | Thalia L. | alligator-flag | Marantaceae
|
| THALH | Thalictrum alpinum L. var. hebetum Boivin | Thalictrum alpinum | Ranunculaceae
|
| THAL | Thalictrum alpinum L. | alpine meadow-rue | Ranunculaceae
|
| THAQ | Thalictrum aquilegifolium L. | columbine meadow-rue | Ranunculaceae
|
| THAR | Thalictrum arkansanum Boivin | Arkansas meadow-rue | Ranunculaceae
|
| THBR4 | Thalictrum breitungii Boivin | Thalictrum occidentale | Ranunculaceae
|
| THCA6 | Thalictrum caulophylloides Small | Thalictrum coriaceum | Ranunculaceae
|
| THCL | Thalictrum clavatum DC. | mountain meadow-rue | Ranunculaceae
|
| THCOC2 | Thalictrum confine Fern. var. columbianum (Rydb.) Boivin | Thalictrum venulosum | Ranunculaceae
|
| THCOG | Thalictrum confine Fern. var. greeneanum Boivin | Thalictrum venulosum | Ranunculaceae
|
| THCO | Thalictrum confine Fern. | Thalictrum venulosum | Ranunculaceae
|
| THCO5 | Thalictrum cooleyi Ahles | Cooley's meadow-rue | Ranunculaceae
|
| THCO2 | Thalictrum coriaceum (Britt.) Small | maid of the mist | Ranunculaceae
|
| THDAH2 | Thalictrum dasycarpum Fisch. & Av�-Lall. var. hypoglaucum (Rydb.) Boivin | Thalictrum dasycarpum | Ranunculaceae
|
| THDA | Thalictrum dasycarpum Fisch. & Av�-Lall. | purple meadow-rue | Ranunculaceae
|
| THDE5 | Thalictrum debile Buckl. | southern meadow-rue | Ranunculaceae
|
| THDI | Thalictrum dioicum L. | early meadow-rue | Ranunculaceae
|
| THFEF | Thalictrum fendleri Engelm. ex Gray var. fendleri | Fendler's meadow-rue | Ranunculaceae
|
| THFEP | Thalictrum fendleri Engelm. ex Gray var. platycarpum Trel. | Thalictrum fendleri var. fendleri | Ranunculaceae
|
| THFEP2 | Thalictrum fendleri Engelm. ex Gray var. polycarpum Torr. | Fendler's meadow-rue | Ranunculaceae
|
| THFEW | Thalictrum fendleri Engelm. ex Gray var. wrightii (Gray) Trel. | Wright's meadow-rue | Ranunculaceae
|
| THFE | Thalictrum fendleri Engelm. ex Gray | Fendler's meadow-rue | Ranunculaceae
|
| THHE2 | Thalictrum heliophilum Wilken & DeMott | Cathedral Bluff meadow-rue | Ranunculaceae
|
| THHU2 | Thalictrum hultenii Boivin | Hulten's meadow-rue | Ranunculaceae
|
| THHY | Thalictrum hypoglaucum Rydb. | Thalictrum dasycarpum | Ranunculaceae
|
| THMA4 | Thalictrum macrostylum Small & Heller | piedmont meadow-rue | Ranunculaceae
|
| THMIK | Thalictrum minus L. ssp. kemense (Fries) Hult�n | Thalictrum hultenii | Ranunculaceae
|
| THMI4 | Thalictrum mirabile Small | little mountain meadow-rue | Ranunculaceae
|