T
- TALINUM
- TAMARISK
- TANACETUM
- TAXODIUM
- TECOMA
- TERRESTRIAL ORCHIDS
- TETRANEURIS
- TEXAS CREEPING OX-EYE
- TEXAS RANGER, SILVERLEAF
- TEXAS YELLOW STAR, STAR DAISY
- THELYPTERIS
- THEVETIA
- THRIFT, SEA PINK
- THUNBERGIA
- THYME
- TIBOUCHINA
- TICKSEED
- TILLANDSIA
- TITI, LEATHERWOOD
- TOAD LILY
- TOADFLAX
- TOMATILLO
- TOMATO
- TORCH GINGER
- TRADESCANTIA
- TRAVELER’S TREE, TRAVELER’S PALM
- TREE MALLOW
- TREE OF HEAVEN
- TRITELEIA
- TROPICAL LADY’S SLIPPER
- TRUMPET CREEPER, TRUMPET VINE
- TRUMPET TREE
- TUBEROSE
- TULIP
- TULIP POPLAR
- TUNG-OIL TREE
- TURK’S CAP, TURK’S TURBAN
- TURNIP AND RUTABAGA
- TURTLEHEAD
- TWINLEAF
- TWINSPUR