Tetrastigma dubium (Lawson) Planch. (syn: Vitis dubia Lawson (ambiguous synonym); Vitis oxyphylla Wall. (ambiguous synonym); Vitis oxyphylla Wall. ex Prain (ambiguous synonym));
Myanmar [Burma] (Kachin, Mandalay, Sagaing), Nepal, Sikkim, peninsular Malaysia (Kedah, Perak, Penang Isl., Kelantan, Selangor, Johor), Bhutan, India (Assam, Darjeeling, West Bengal, Arunachal Pradesh, Manipur, Mizoram, Tripura, Meghalaya), Nepal, Bangladesh
as per Catalogue of Life;
Climbers; branches slender, smooth, reddish; tendrils simple, ca. 15 cm long. Leaves digitately compound, ternate; petiolules ca. 1-1.5 cm long, puberulous; petioles ca. 5-10 cm long; lamina of terminal leaflets ca. 9-14 x 5-8 cm, lanceolate or ovate-lanceolate, rounded to acute at base, acute at apex, margins distantly cuspidate-serrate; lamina of lateral leaflets ca. 6-8 x 3-5 cm, oblique at base, margins and apex as in terminal leaflets. Inflorescences divaricately branched, corymbose cymes, ca. 7-10 cm long, pubescent; peduncles ca. 2-4 cm long, longer due to suppression of lateral branches, pubescent; calyx distinctly 4-toothed, pubescent; petals ca. 1 mm long, oblong-ovate, inflexed; with a dorsal spur at apex, pubescent; stamens ca. 0.7 mm long; disc thin, membranous, forming a ring encircling lower half in immature fruits; ovary ca. 0.5 mm across, conical, glabrous; stigma sessile. Berries ca. 0.6-0.9 cm across, globose. Seeds 1-2, ca. 0.6 x 0.5 cm, obovoid, horizontally wrinkled.
Flowering & Fruiting: September-February
In primary forests, shaded and moist places; 300-500 m; common.
(Attributions- French Institute of Pondicherry from India Biodiversity Portal)