| Dicotyledon | Literature for Thunbergia fragrans
Smith, 1991; Wagner et al., 1990, 1999; Lorence & Wagner, 2020. |
| Acanthaceae -- The Acanthus Family | Bibliography |
| Thunbergia fragrans | |
Common name(s): white thunbergia, sweet clock-vine |
| General Information | ||
|---|---|---|
| Distribution | Native to India and Ceylon.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i. First collected 1916, Forbes 611.K (BISH). |
|
| Habitat | Cultivated in Hawai'i, now natrualized at least on Kaua'i, O'ahu, Maui, and Hawai'i, but probably on all of the main islands. | |
| Habit |
Herbaceous, scrambling or climbing vine with slender sinistrorsely twining stems. |
|
| Leaves |
Leaves petiolate; blade hastate-ovate, 3‒10 cm long, 1.5‒5 cm wide, broadly obtuse to truncate at base, margin subentire, often with pair of large teeth toward base; petiole unwinged, 0.5‒7 cm long. |
|
| Flowers |
Inflorescences a solitary flower, axillary, pedicellate, subtended by 2 lanceolate to ovate bracts 13‒15 mm long. Flowers with 15‒16 calyx lobes; corolla white, tube 2‒2.5 cm long, limb 4‒5.5 cm across. |
|
| Fruit |
Fruit 2.2‒2.5 cm long, body subglobose-didymous, 0.5‒0.7 cm long, 1 cm wide, beak flat, 1.5‒1.7 cm long. |
|
| Seeds |
Seeds 2‒4, lenticular, biconvex, 5‒6 mm long, 3 mm wide, brown, surface rugose. |
|
| Notes |
Despite the specific epithet, flowers of this species are not noticeably fragrant at any time of day or night. |
|
| Contributor |
David Lorence |
