白树 bai shu

Gelonium multiflorum Jussieu, Euphorb. Gen. 111, t. 10, f. 31A. 1824; G. aequoreum Hance var. hainanense Hemsley.

Shrubs or trees, 2-13 m tall; branches gray-yellow to gray-brown, glabrous. Petiole 3-12 mm, glabrous; leaf blade obovate-elliptic to obovate-lanceolate or oblong-elliptic, 5-16 × 3-8 cm, thinly leathery, glabrous, base cuneate or broadly cuneate, margin entire, apex acute or shortly acuminate; lateral veins 5-9. Inflorescences pedunculate cymules; pedicels and sepals puberulent; flowers 5-8 mm in diam. Male flowers: sepals orbicular, margin shallowly serrate; stamens 30-60; disk glands small, inserted at base of filaments. Female flowers: disk annular; ovary globose, glabrous; styles 3, horizontal, 2-lobed, lobes shallowly bifid to irregularly multifid. Sepals persistent in fruit; capsule globose, 11-15 mm, slightly fleshy, subglabrous, 3-seeded. Fl. May-Sep, fr. Jun-Nov.

Lowland and montane thickets; below 100-600 m. S Guangdong, S Guangxi, Hainan, S Yunnan [Bangladesh, Cambodia, Laos, Malaysia, Myanmar, Thailand, Vietnam].