Laurel Clock Vine
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Laurel Clock Vine
ative Photo: J. M. Garg
Common name: Laurel Clock Vine, laurel-leaved clockvine, laurel-leaved thunbergia, purple allamanda
Botanical name: Thunbergia laurifolia    Family: Acanthaceae (Acanthus 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. Laurel Clock Vine is native to East Himalaya to Peninsula Malaysia.

Identification credit: Gurcharan Singh Photographed at Mayem Lake, Goa.

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