Listed here are Hawaiian plant common names that begin with the letter T.
- Tahitian Screwpine
- Tail Flower
- Tamarind, Horse
- Taro Vine
- Tarovine
- Tasselflower, Florida
- Tasselflower, Lilac
- Telegraph Weed
- Telegraphweed
- Templetree
- Textile Screwpine
- Thatch Screwpine
- Thimbleberry
- Thimbleweed, Japanese
- Three-lobe Morning-glory
- Three-lobed Morning-glory
- Thunbergia, Large-flowered
- Thunbergia, White
- Ti
- Ti Plant
- Tibouchina
- Tick Trefoil, Greenleaf
- Ticktrefoil, Greenleaf
- Tiplant
- Tongavine, Centipede
- Toothedthread, Mottled
- Torch Ginger
- Torch-ginger
- Tourist Pineapple
- Tower Ginger, Red
- Trailing Daisy
- Tree Fern, Hawaiian
- Tree Ohelo
- Tropical Hibiscus
- Tropical White Morning-glory
- Trumpet Tree
- Trumpet Vine, Blue
- Tubeflower
- Tulip Tree, African
- Tulip Tree, Indian
- Tuliptree, African
- Turk's Cap
- Turk's Turban
- Turk's Turbin
- Twelve Apostles