Botanical name: Tetrastigma rumicispermum Family: Vitaceae (Grape family)
Synonyms: Vitis rumicisperma, Tetrastigma corymbosum, Vitis tuberculata
Warty Chestnut Vine is a large woody climber with branchlets round, prominently warty when old, hairless; tendrils bifurcate. Leaves are pedately 5-foliolate; leaf-stalk 3-14 cm; central leaflet-stalk 1-3 cm. Central leaflet is obovate-elliptic, 4-17 x 3-8 cm, hairless, lateral veins 7-19 pairs, base wedge-shaped, base of lateral leaflets asymmetric, margin with 7-16 denticles on each side, tip pointed or with a short sharp point. Flowers are borne in leaf-axils or leaf-opposed on lateral branches, in umbels carried on flower-cluster-stalk 3-8 cm long, velvet-hairy or hairless. Flower-stalks are 1-3 mm, papillose or becoming hairless. Buds are elliptic or obovoid-elliptic, 2-2.5 mm, tip rounded. Calyx are shallow and saucer-shaped, hairless, margin wavy. Petals are elliptic, 1.8-2.3 mm, tip galeate, hairless. Anthers are yellow. Disk well developed in male flowers, 4-lobed, thin in female flowers. Berry is spherical, 8-10 mm in diameter, 2- or 3-seeded. Seeds are obovoid-triangular, base narrowed, tip retuse, ventral holes furrowed upward 1/3 from middle. Warty Chestnut Vine is found in Eastern Himalayas, from Nepal to Bhutan, Meghalaya, at altitudes of 1200-1800 m. Flowering: April-May.
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The flower labeled Warty Chestnut Vine is ...