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Not to be confused with Thunbergia Montin, a synonym of Gardenia
Thunbergia alata.JPG
Flowers of Thunbergia alata
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Acanthaceae
Subfamily: Thunbergioideae
Genus: Thunbergia

Flemingia Roxb. ex Rottler
Hexacentris Nees[1]

Thunbergia is a genus of flowering plants in the family Acanthaceae, native to tropical regions of Africa, Madagascar and southern Asia. Thunbergia species are vigorous annual or perennial vines and shrubs growing to 2-8 m tall. The generic name honours Carl Peter Thunberg.

Its members are known by various names, including thunbergias and clockvine. Thunbergia on its own usually refers to Thunbergia grandiflora, while Thunbergia alata is often known as Black-eyed Susan vine or just Black-eyed Susan (not to be confused with other flowers called Black-eyed Susan). Orange clockvine is the name of Thunbergia gregorii.

Thunbergias are frequent garden escapes, becoming invasive species; T. grandiflora, T. fragrans, and T. laurifolia are considered weeds in Australia.[2]

Selected species[edit]

Formerly placed here[edit]



  1. ^ a b "Genus: Thunbergia Retz.". Germplasm Resources Information Network. United States Department of Agriculture. 2007-10-05. Retrieved 2010-10-30. 
  2. ^ Weeds Australia, National Weeds Strategy, retrieved 27 March 2015 
  3. ^ a b "GRIN Species Records of Thunbergia". Germplasm Resources Information Network. United States Department of Agriculture. Retrieved 2010-10-30. 

External links[edit]

Data related to Thunbergia at Wikispecies

  • A Tale of Two Susans II - non-scholarly essay on the etymology and history of Thunbergia (and Carl Peter Thunberg)