| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| TIVU | Tilia ×vulgaris Hayne (pro sp.) | common linden | Tiliaceae
|
| TILIA | Tilia L. | basswood | Tiliaceae
|
| TIAJ | Tilingia ajanensis Regel & Tiling | false snowparsley | Apiaceae
|
| TILIN | Tilingia Regel & Tiling | tilingia | Apiaceae
|
| TIANB | Tillaea angustifolia Nutt. var. bolanderi S. Wats. | Crassula saginoides | Crassulaceae
|
| TIAN2 | Tillaea angustifolia Nutt. | Crassula aquatica | Crassulaceae
|
| TIAQD | Tillaea aquatica L. var. drummondii (Torr. & Gray) Jepson | Crassula drummondii | Crassulaceae
|
| TIAQD2 | Tillaea aquatica L. var. drummondii sensu (Torr. & Gray) Jepson p.p. | Crassula longipes | Crassulaceae
|
| TIAQ3 | Tillaea aquatica L. | Crassula aquatica | Crassulaceae
|
| TIAS | Tillaea ascendens Eat. | Crassula aquatica | Crassulaceae
|
| TIBO | Tillaea bolanderi (S. Wats.) Greene | Crassula saginoides | Crassulaceae
|
| TIDRB | Tillaea drummondii Torr. & Gray var. bolanderi (S. Wats.) Jepson | Crassula saginoides | Crassulaceae
|
| TIDR5 | Tillaea drummondii Torr. & Gray | Crassula drummondii | Crassulaceae
|
| TIERE | Tillaea erecta Hook. & Arn. ssp. eremica (Jepson) Wiggins | Crassula connata var. eremica | Crassulaceae
|
| TIERE2 | Tillaea erecta Hook. & Arn. var. eremica Jepson | Crassula connata var. eremica | Crassulaceae
|
| TIER3 | Tillaea erecta Hook. & Arn. | Crassula connata var. connata | Crassulaceae
|
| TILE3 | Tillaea leptopetala Benth. | Crassula connata var. subsimplex | Crassulaceae
|
| TILO2 | Tillaea longipes Rose | Crassula longipes | Crassulaceae
|
| TIMIS | Tillaea minima Miers ex Hook. & Arn. var. subsimplex S. Wats. | Crassula connata var. subsimplex | Crassulaceae
|
| TIMI | Tillaea minima Gay | Crassula connata var. connata | Crassulaceae
|
| TIMI6 | Tillaea minima Miers ex Hook. & Arn. | Crassula connata var. connata | Crassulaceae
|
| TIMU2 | Tillaea muscosa L. | Crassula tillaea | Crassulaceae
|
| TIRU2 | Tillaea rubescens Kunth | Crassula connata var. connata | Crassulaceae
|
| TISO | Tillaea solierii Gray | Crassula solierii | Crassulaceae
|
| TIVA3 | Tillaea vaillantii sensu Gray, non Willd. | Crassula saginoides | Crassulaceae
|
| TIVI | Tillaea viridis S. Wats. | Crassula viridis | Crassulaceae
|
| TIAQ2 | Tillaeastrum aquaticum (L.) Britt. | Crassula aquatica | Crassulaceae
|
| TIDR2 | Tillaeastrum drummondii (Torr. & Gray) Britt. | Crassula drummondii | Crassulaceae
|
| TIDR4 | Tillaeastrum drummondii sensu (Torr. & Gray) Britt. p.p. | Crassula longipes | Crassulaceae
|
| TIPR2 | Tillaeastrum pringlei Rose | Crassula saginoides | Crassulaceae
|
| TIVA4 | Tillaeastrum vaillantii auct. non (Willd.) Britt. | Crassula saginoides | Crassulaceae
|
| TIVI2 | Tillaeastrum viride (S. Wats.) Britt. | Crassula viridis | Crassulaceae
|
| TIAL | Tillandsia aloifolia Hook. | Tillandsia flexuosa | Bromeliaceae
|
| TIBA | Tillandsia baileyi Rose ex Small | reflexed airplant | Bromeliaceae
|
| TIBA2 | Tillandsia balbisiana J.A. & J.H. Schultes | northern needleleaf | Bromeliaceae
|
| TIBA3 | Tillandsia bartramii Ell. | Bartram's airplant | Bromeliaceae
|
| TIBU | Tillandsia bulbosa Hook. | bulbous airplant | Bromeliaceae
|
| TICI | Tillandsia circinnata auct. non Schlecht. | Tillandsia paucifolia | Bromeliaceae
|
| TIFAC | Tillandsia fasciculata Sw. var. clavispica Mez | giant airplant | Bromeliaceae
|
| TIFAD | Tillandsia fasciculata Sw. var. densispica Mez | giant airplant | Bromeliaceae
|
| TIFAF2 | Tillandsia fasciculata Sw. var. fasciculata | giant airplant | Bromeliaceae
|
| TIFAF | Tillandsia fasciculata Sw. var. floridana L.B. Sm. | Tillandsia floridana | Bromeliaceae
|
| TIFAV | Tillandsia fasciculata Sw. var. venosispica Mez | giant airplant | Bromeliaceae
|
| TIFA | Tillandsia fasciculata Sw. | giant airplant | Bromeliaceae
|
| TIFE | Tillandsia festucoides Brongn. ex Mez | fescue airplant | Bromeliaceae
|
| TIFL2 | Tillandsia flexuosa Sw. | twisted airplant | Bromeliaceae
|
| TIFL4 | Tillandsia ×floridana (L.B. Sm.) Luther | | Bromeliaceae
|
| TIHY | Tillandsia hystricina Small | Tillandsia fasciculata var. densispica | Bromeliaceae
|
| TIJU | Tillandsia juncea auct. non (Ruiz & Pavón) Poir. | Tillandsia bartramii | Bromeliaceae
|
| TILI2 | Tillandsia lineatispica Mez | pinon | Bromeliaceae
|
| TIMY | Tillandsia myriophylla Small | Tillandsia bartramii | Bromeliaceae
|
| TINU3 | Tillandsia nutans Sw. | Catopsis nutans | Bromeliaceae
|
| TIPA2 | Tillandsia paucifolia Baker | potbelly airplant | Bromeliaceae
|
| TIPO | Tillandsia polystachya auct. non (L.) L. | Tillandsia smalliana | Bromeliaceae
|
| TIPR | Tillandsia pruinosa Sw. | fuzzywuzzy airplant | Bromeliaceae
|
| TIPU2 | Tillandsia pulchella Hook. | Tillandsia tenuifolia | Bromeliaceae
|
| TIRE | Tillandsia recurvata (L.) L. | small ballmoss | Bromeliaceae
|
| TISE | Tillandsia setacea Sw. | southern needleleaf | Bromeliaceae
|
| TISI | Tillandsia simulata Small | Tillandsia bartramii | Bromeliaceae
|
| TISM | Tillandsia ×smalliana Luther | | Bromeliaceae
|
| TISU2 | Tillandsia sublaxa Baker | Tillandsia variabilis | Bromeliaceae
|
| TITE | Tillandsia tenuifolia L. | narrowleaf airplant | Bromeliaceae
|
| TITE2 | Tillandsia tenuifolia Mez, non L. | Tillandsia setacea | Bromeliaceae
|
| TIUS | Tillandsia usneoides (L.) L. | Spanish moss | Bromeliaceae
|
| TIUT | Tillandsia utriculata L. | spreading airplant | Bromeliaceae
|
| TIVA | Tillandsia valenzuelana A. Rich. | Tillandsia variabilis | Bromeliaceae
|
| TIVA2 | Tillandsia variabilis Schlecht. | leatherleaf airplant | Bromeliaceae
|
| TILLA2 | Tillandsia L. | airplant | Bromeliaceae
|
| TIAUA | Timmia austriaca Hedw. var. arctica (Lindb.) Arnell | Timmia austriaca | Timmiaceae
|
| TIAU70 | Timmia austriaca Hedw. | Austria timmia moss | Timmiaceae
|
| TIBA4 | Timmia bavarica Hessl. | Timmia megapolitana var. bavarica | Timmiaceae
|
| TICO6 | Timmia comata Lindb. & Arnell | Timmia norvegica var. excurrens | Timmiaceae
|
| TIMEB2 | Timmia megapolitana Hedw. ssp. bavarica (Hessl.) Brass. | Timmia megapolitana var. bavarica | Timmiaceae
|
| TIMEB | Timmia megapolitana Hedw. var. bavarica (Hessl.) Brid. | Bavarian timmia moss | Timmiaceae
|
| TIMEM | Timmia megapolitana Hedw. var. megapolitana | timmia moss | Timmiaceae
|
| TIME4 | Timmia megapolitana Hedw. | timmia moss | Timmiaceae
|
| TINOC | Timmia norvegica Zett. var. comata (Lindb. & Arnell) Crum | Timmia norvegica var. excurrens | Timmiaceae
|
| TINOC2 | Timmia norvegica Zett. var. crassiretis Hess. | Timmia sibirica | Timmiaceae
|
| TINOE | Timmia norvegica Zett. var. excurrens Bryhn | Norwegian timmia moss | Timmiaceae
|
| TINON | Timmia norvegica Zett. var. norvegica | Norwegian timmia moss | Timmiaceae
|
| TINO | Timmia norvegica Zett. | Norwegian timmia moss | Timmiaceae
|
| TISI2 | Timmia sibirica Lindb. & Arnell | Siberian timmia moss | Timmiaceae
|
| TIMMI | Timmia Hedw. | timmia moss | Timmiaceae
|
| TIAN3 | Timmiella anomala Bruch & Schimp. in B.S.G. | timmiella moss | Pottiaceae
|
| TICR3 | Timmiella crassinervis (Hampe) L. Koch | timmiella moss | Pottiaceae
|
| TIFLV | Timmiella flexiseta sensu Grout var. vancouveriensis (Broth.) Grout | Timmiella crassinervis | Pottiaceae
|
| TIFL5 | Timmiella flexiseta sensu Grout | Timmiella crassinervis | Pottiaceae
|
| TIMMI2 | Timmiella (De Not.) Limpr. | timmiella moss | Pottiaceae
|
| TILE4 | Timonius ledermannii Valeton | | Rubiaceae
|
| TIMON | Timonius DC. | | Rubiaceae
|
| TIAN | Tinantia anomala (Torr.) C.B. Clarke | widowstears | Commelinaceae
|
| TINAN | Tinantia Scheidw. | tinantia | Commelinaceae
|
| TICI3 | Tiniaria cilinodis (Michx.) Small | Polygonum cilinode | Polygonaceae
|
| TICO5 | Tiniaria convolvulus (L.) Webb & Moq. | Polygonum convolvulus var. convolvulus | Polygonaceae
|
| TICR2 | Tiniaria cristata (Engelm. & Gray) Small | Polygonum scandens var. cristatum | Polygonaceae
|
| TIDU | Tiniaria dumetorum (L.) Opiz | Polygonum scandens var. dumetorum | Polygonaceae
|
| TISC | Tiniaria scandens (L.) Small | Polygonum scandens var. scandens | Polygonaceae
|
| TIDI | Tipularia discolor (Pursh) Nutt. | crippled cranefly | Orchidaceae
|
| TIUN2 | Tipularia unifolia B.S.P. | Tipularia discolor | Orchidaceae
|
| TIPUL | Tipularia Nutt. | tipularia | Orchidaceae
|
| TIBRP | Tiquilia brevifolia Nutt. ex Torr. var. plicata Torr. | Tiquilia plicata | Boraginaceae
|