云南马(瓜交)儿 yun nan ma jiao er

Bryonia marginata Blume, Bijdr. 924. 1826; Melothria marginata (Blume) Cogniaux; Scopella marginata (Blume) W. J. de Wilde & Duyfjes; Zehneria marginata (Blume) Keraudren.

Plants scandent, annual. Stem and branches glabrous, angular-sulcate. Petiole slender, 2-3.5 cm, white hirsute; leaf blade ovate-cordate or oblong-hastate, 6-10 × 4-10 cm, membranous, usually 3-lobed; median lobe larger, narrowly triangular or lanceolate-triangular, 5-7 × 1.5-2.5 cm, apex acute; lateral lobes smaller, triangular, 2.5-3.5 × 2-2.5 cm, scabrous on both surfaces, white setose, base truncate or slightly concave, margin callous-dentate, apex obtuse. Tendrils slender. Male flowers usually 5-15 in a 4-6 cm raceme; pedicels only 2-6 mm, puberulent; calyx tube narrowly campanulate, ca. 1 mm, hirsute; segments subulate, 0.3-0.5 mm; corolla yellow, pubescent; segments ovate-triangular, ca. 1 mm; anthers attenuate, glabrous; connective not produced; pistillodes glandular. Female flowers solitary in axils; pedicels filiform, 3-4 cm; calyx and corolla as in male flowers; ovary narrowly oblong, puberulent; styles short; stigmas enlarged. Fruiting pedicel slender, 3-4 cm, glabrous; fruit ovoid or subglobose, 1.5-1.8 cm × 5-12 mm, base slightly obtuse or attenuate. Seeds ovate, ca. 4 × 2.2 mm, ca. 1 mm thick, base obtuse-rounded, both surfaces scrobiculate, margin prominent.

Sparse forests or roadsides on mountain slopes; 600-800 m. Yunnan [Cambodia, Indonesia, Laos, Myanmar, Philippines, Thailand, Vietnam].