山柚子 shan you zi

Lianas, to 30 m. Branches glabrescent. Petiole 5-10 mm; leaf blade lanceolate, ovate, or oblong, 7-14 × 3-5 cm, ± leathery, glabrous, base cuneate to sometimes rounded, apex acute to acuminate, midvein abaxially prominent; veins 7-9 on each side of midvein. Racemes 1 or 2, axillary, 2-4 cm, brownish tomentose; bracts broadly ovate, 2-3 mm. Pedicel 1.5-2 mm, puberulous. Tepals yellowish green, oblong, ca. 1.5 mm, pubescent. Filaments filiform, ca. 1.5 mm; anther ca. 0.3 mm. Disk lobes ± clavate, ca. 0.5 mm. Ovary ca. 1 mm. Drupe reddish, ellipsoid, 2.5-3 × 1.4-1.6 cm; stipe thickened, ca. 5 mm. Fl. and fr. Apr-Jun. 2n = 20.

Forests, thickets, mountain slopes; 500-800 m. S Yunnan [S and SE Asia; tropical Africa, Australia].