Common name: Black eyed susan vine. Scientific name: Thunbergia alata. Family: Acanthaceae. Genus: Thunbergia. Species: alata. Plant type: Vines and Climbers. Height: 6-8 ft. (1.8-2.4 m). Flower Color: Yellow, Orange. Flowering time: June to September.
Thunbergia alata (Black-eyed Susan vine), is a perennial climbing plant in the Acanthaceae family. The leaves are green, heart-shaped or arrow-shaped, sometimes toothed. The flowers typically are orange with characteristic dark spot in the centre. different varieties can be red, orange, white, pale yellow centre. flowers are borne singly in leaf axils. The flower from June to September. Black-eyed Susan vine is grown as an ornamental plant in gardens and in hanging baskets. Native to tropical areas of East Africa.