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Plants
| Title | Common Name |
|---|---|
| Tripterygium wilfordii | Chekiang |
| Tulipa edulis | Chin Teng; Shan Tzu Ku; Shan Ci Gu; Amana; Shan T'Zu Ku |
| Tulipa gesneriana | not available |
| Tulipa sp | Tulip |
| Turraea robusta | not available |
| Tylophora fasciculata | not available |
| Tylophora ovata | not available |
| Typha latifolia | Gama; Cattail |
| Typha sp | not available |
| Typhonium divaricatum | not available |
| Typhonium giganteum | not available |
| Ulex europaeus | Tojo; Katir Tirnagi |
| Ungnadia speciosa | not available |
| Urginea altissima | not available |
| Urginea burkei | Gavu; Suto; Transvaal Slangkop |
| Urginea macrocentra | Poison Bulb; Natal Slangkop |
| Urginea maritima | Onion,Sea; Escila; Adasogani; Squill; Basal Al Far; U'Nsul; Squill,Indian |
| Urginea scilla | Kaiso; Sea Onion; Red Squill |
| Vallota speciosa | not available |
| Vaupesia cataractarum | Ma Ha Wa Soo |