膜叶白桐树 mo ye bai tong shu

Shrubs or small trees, 3-5 m tall, dioecious. Branchlets pubescent. Stipules small; petiole 3.5-7 cm; leaf blade ovate to elliptic, 18-30 × 6-14 cm, membranous, glabrous, base obtuse or broadly cuneate, margin sinuous or subentire, apex acuminate. Male inflorescences 10-20 cm, pubescent; bracts lanceolate, ca. 1 mm. Male flowers 3-5 per bract; pedicel ca. 1 mm; sepals 3, ca. 2 mm, pilose; stamens 35-50; interstaminal glands ca. 0.3 mm. Female inflorescences 5-10 cm, pubescent; bracts triangular, ca. 1.5 mm. Female flowers 1 per bract; sepals 3, triangular, ca. 1.2 mm, tomentulose; disk cup-shaped, sinuous; ovary tomentulose; styles 3, ca. 1 mm, plumose. Fruiting pedicel ca. 3 mm; capsule 3-lobed, ca. 1.2 cm, pilose or glabrous. Seeds globose, 6-7 mm in diam. Fl. and fr. Mar-Nov.

Valleys, river valleys, evergreen forests; 200-2000 m. S Guangxi, Yunnan [NE India, Myanmar, N Vietnam].