Botanical name: Thunbergia laurifolia Family: Acanthaceae (Barleria family)
Synonyms: Thunbergia grandiflora var. laurifolia, Thunbergia harrisii
Laurel Clock Vine is a climber with ovate-oblong or nearly lanceolate entire to slightly toothed leaves. Leaves are obtuse or heart-shaped at base, long pointed, pinnately nerved, hairless, mostly 7-18 cm long and 2.5-6 cm wide, on stalks up to 6 cm long. Bracteoles are persistent, 4-5 cm long. Calyx is truncate. Flowers are blue-violet to white, tube 3.5-4.5 cm long, limb 6-8 cm broad. Capsule is up to 1.5 cm wide, the beak to 3 cm long. Differs from Bengal Clock Vine mainly in the narrower, 3-7 cm wide, ovate to oblong, rarely lobed leaves which are frequently very coarsely toothed, long-pointed at the tip.
Identification credit: Gurcharan Singh
The flower labeled Laurel Clock Vine is ...