Contains 4 accepted taxa overall.

Characteristics
Thunbergia Retz.
THUNBERGIA
Classification
LAMIALES
Thunbergia
Citation
THUNBERGIA Retzius, Physiogr. Saelsk. Handl. 1(3): 163. 1780, nom. cons. vs. Thunbergia Montin 1773.
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TYPE: Thunbergia capensis Retzius
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Thunbergia alata BLACKEYED SUSAN VINE Not Native UPL (NWPL)
Thunbergia erecta BUSH CLOCKVINE Not Native FAC (NWPL)
Thunbergia fragrans WHITELADY Not Native
Thunbergia grandiflora SKYVINE; CLOCKVINE; BENGAL TRUMPET Not Native UPL (NWPL)
[Family identification key]
1.  Erect or scandent shrub; leaf blade base acute to cuneate
1.  Trailing or climbing vines; leaf blade base subtruncate to cordate
2
2.  Petioles winged; corolla lobes yellow to orange, occasionally white, throat dark purplish
2.  Petioles not winged; corolla lobes white to bluish, throat usually pale, yellow, or green, or corolla yellow and red
3
3.  Leaf blades strongly 3-veined, additional basal veins obscure; sepals reddish; corolla yellow and red
3.  Leaf blades palmately 3- to 7-veined, the basal veins sometimes slightly weaker; sepals greenish; corolla lobes white to bluish, throat usually pale, yellow, or green
4
4.  Leaf blades 4-10 cm long; floral bracts 12-15 mm long; corolla 2-3 cm long, 3-5 cm wide, the lobes white; fruit 7-9 mm wide, with a beak 10-15 mm long
4.  Leaf blades 6-22 cm long; floral bracts 25-40 mm long; corolla 5-8 cm long, 6-8 cm wide, the lobes white, pink, to bluish; fruit 14-18 mm wide, with a beak 15-25 mm long
5
5.  Stems and leaves pubescent or scabrid; leaf blades broadly ovate-cordate, 0.8-1.2 times as long as wide; calyx truncate
5.  Stems and leaves glabrate; leaf blades lanceolate to ovate, 1.4-2 times as long as wide
Genus Synonyms
Synonym Full Citation Basionym Type
Endomelas Endomelas Rafinesque, Fl. Tellur. 4: 67. 1838 ("1836"). TYPE: Endomelas alata (Bojer ex Sims) Rafinesque (Thunbergia alata Bojer ex Sims)
Flemingia Flemingia Roxburgh ex Rottler, Ges. Naturf. Freunde Berlin Neue Schriften 4: 202. 1803, nom. rej. vs. Flemingia Roxburgh ex Aiton 1812. TYPE: Flemingia grandiflora Roxburgh ex Rottler
Hexacentris Hexacentris Nees von Esenbeck, in Wallich, Pl. Asiat. Rar. 3: 74, 78. 1832. TYPE: Non designatus.
Pleuremidis Pleuremidis Rafinesque, Fl. Tellur. 4: 67. 1838 ("1836"). TYPE: Pleuremidis grandiflora (Roxburgh) Rafinesque (Flemingia grandiflora Roxburgh)
Schmidia Schmidia Wight, Icon. Pl. Ind. Orient. 5(2): 16, t. 1848. 1852. TYPE: Schmidia bicolor Wight
Valentiana Valentiana Rafinesque, Spechhio Sci. 1: 87. 1814. TYPE: Valentiana volubilis Rafinesque 1814.