落叶花桑 luo ye hua sang

Allaeanthus kurzii J. D. Hooker, Fl. Brit. Ind. 5: 490. 1888.

Shrubs, scandent, large, flowering before leaves; dioecious. Branchlets long. Stipules obliquely triangular-lanceolate, 4-5 × 2.5-3 mm, glabrous, base ± amplexicaul, apex acute. Leaves distichous; petiole 0.7-1.4 cm, puberulous; leaf blade ovate-elliptic, 10-20 × 5-10 cm, both surfaces glabrous and smooth or very minutely papillate, margin serrate; secondary veins 3-6 on each side of midvein. Male inflorescences cylindric, 4-5 cm. Female inflorescences globose, flowers intermixed with bracts. Male flowers: calyx 4-lobed. Female flowers: calyx pipelike, apically 4-lobed; ovary sessile; style linear, exserted. Syncarp 0.8-1 cm in diam. Drupelets compressed, smooth; exocarp woody. Fl. Apr-May, fr. May-Jun.

Tropical or seasonal rain forests; 200-600 m. S Yunnan [Bhutan, NE India, Laos, N Myanmar, Sikkim, Thailand, Vietnam].