翅茎白粉藤 chi jing bai fen teng

Lianas, woody. Branchlets nearly terete, with 6 wings and longitudinal ridges between wings, nodes usually corrugated and contracted when dry, glabrous; tendrils unbranched. Leaves simple; stipules caducous; petiole 1.5-5 cm, glabrous; leaf blade ovate-triangular, 6-10 × 4-8 cm, glabrous, basal veins 3, lateral veins 3 or 4 pairs, veinlets inconspicuous, base truncate or nearly so, margin with 5-8 fine teeth on each side, sometimes teeth inconspicuous, apex mucronate. Compound dichasium terminal or leaf-opposed; peduncle 2-4.5 cm, glabrous. Pedicel 0.3-1 mm, with papillose and glandular hairs. Buds conical, 4-8 mm, apex obtuse. Calyx entire. Petals triangular-elliptic, 2.5-6 mm, glabrous. Lower part of ovary adnate to disk; style conical; stigma slightly expanded. Berry globose, 8-10 mm in diam., 1(or 2)-seeded. Seed raphe raised, ventral holes short. Fl. Sep-Nov, fr. Dec-Feb of following year.

Riverside forests; 100-400 m. Fujian, Guangdong, Guangxi [Cambodia, Thailand, Vietnam].