离丝野木瓜 li si ye mu gua

Monoecious. Stems and branches grayish yellow, striate. Petiole 4--9 cm; leaf blade palmately 5--8-foliolate; petiolules 0.9--1.8 cm; leaflets obovate-oblong to oblanceolate, 6--8 × 1.8--2.9 cm, leathery, abaxially pale green and densely maculate, adaxially dark green and shiny, base cuneate, apex acuminate; veins inconspicuous on both surfaces. Corymbose racemes 2- or 3-flowered; bracts persistent. Sepals greenish white, apex acuminate. Petals absent. Male flowers: sepal margin serrate; outer 3 sepals ovate, ca. 2.2 × 0.7 cm; inner 3 sepals oblong-lanceolate, ca. 18 × 0.3--0.4 cm. Filaments ca. 4 mm, base connate; anthers ca. 4 mm; connective apical appendage hornlike, ca. 3 mm. Pistillodes 3. Female flowers: outer 3 sepals ovate-oblong, ca. 1.6 × 0.6 cm; inner 3 sepals ca. 15 × 4 mm. Staminodes 6, ca. 0.5 mm. Carpels narrowly oblong, ca. 9 mm. Stigma capitate. Fruit narrowly ovoid, ca. 4 × 1.5 cm, smooth. Fl. Apr--May, fr. Aug--Sep.

Forest margins on mountain slopes; 1600--1900 m. Xizang, Yunnan [Myanmar].