大叶火筒树 da ye huo tong shu

Leea aspera Wallich ex G. Don; L. robusta Roxburgh.

Erect shrubs, small trees, or perennial herbs. Branchlets terete with longitudinal ridges, hairy to mealy pubescent. Leaves variable in shape and size, simple, 3-foliolate, or 1-3-pinnate; stipules large and obovate, 4-6 × 2-6 cm, caducous; petiole 15-20 cm, pubescent, or glabrescent; simple leaf blade broadly ovate, 40-65 × 35-60 cm, base rounded, margin dentate, apex acuminate, pubescent; lateral veins 12-15 pairs, veinlets inconspicuously protruding. Inflorescences opposite to leaves, compound corymbose-dichasial; peduncle 20-25 cm, mealy pubescent; bracts triangular to narrowly so. Pedicel 2-3 mm, pubescent; buds oval-elliptic, 2-3 mm, apex rounded. Calyx tube cupulate, with 5 triangular teeth, pubescent. Petals elliptic, 2.5-4 mm, pubescent. Staminodial tube 2-2.2 mm, with lower part 0.3-0.5 mm, upper 1.4-1.7 mm, lobes 1.3-1.6 mm. Stamens 5; filaments 1.5-2 mm; anthers elliptic, 1.4-1.8 × 0.6-0.8 mm. Ovary nearly globose; style 1.2-1.5 mm; stigma slightly capitate. Berry oblate, 0.8-1.3 cm, 6-seeded. 2n = 24, 48.

Yunnan [Cambodia, India, Laos, Myanmar, Nepal, Thailand].