Herbarium specimen Thunbergia laurifolia (L. 3704445)
Plant Portrait Thunbergia alata (Thunbergiaceae) C.A. Backer, Weed Flora of javanese Sugar-cane Fiels, Atlas pt 16 (1973) t. 609
Flower Thunbergia cf alata (Thunbergiaceae) New Ireland Mark Coode