白饭树 bai fan shu

Phyllanthus virosus Roxburgh ex Willdenow, Sp. Pl. 4: 578. 1805; Acidoton obovatus (Willdenow) Kuntze; A. virosus (Roxburgh ex Willdenow) Kuntze; Cicca obovata (Willdenow) Kurz; Flueggea microcarpa Blume; F. monticola Webster; F. obovata (Willdenow) Baillon; F. sinensis Baillon; Securinega multiflora S. B. Liang; S. obovata (Willdenow) Müller Argoviensis; S. virosa (Roxburgh ex Willdenow) Baillon; Xylophylla obovata Willdenow.

Shrubs 1-6 m tall, glabrous; branchlets sharply angular when young, reddish brown, smooth, later darker and lenticellate; ultimate branchlets not spine-tipped. Stipules lanceolate, 1.5-3 mm, entire or margins minutely lacerate; petiole 2-9 mm; leaf blade elliptic, oblong, obovate, or rotund, 2-5 × 1-3 cm, papery, base obtuse to cuneate, margin entire, slightly revolute when dry, apex rounded to acute, mucronulate, white-green abaxially; lateral veins 5-8 pairs. Plants dioecious. Inflorescences axillary, fascicled; bracts scarious, mostly less than 1 mm. Male flowers: pedicels slender, 3-6 mm; sepals 5, ovate, 0.8-1.5 × 0.6-1.2 mm, yellowish, margins entire or obscurely serrulate; disk segments 5, angular, free; stamens 5; filaments 1-3 mm; anthers ellipsoid, 0.4-0.7 mm, exserted from sepals; rudimentary ovary 0.8-1.4 mm high, usually 3-partite, recurved at apex. Female flowers: inflorescence (1-)3-10-flowered; pedicels 1.5-12 mm; sepals 5, as in male; disk annular, entire; ovary ovoid, 3-locular; styles 0.7-1.1 mm, connate at base, bifid at apex, lobes spreading or reflexed. Berry subglobose to oblate, 3-5 mm in diam., whitish when ripe, indehiscent. Seeds chestnut brown, often shiny, faintly reticulate or verruculose; testa thickened; hilum rounded, with a pronounced adaxial invagination. Fl. Mar-Aug, fr. Jun-Nov.

Scrub on slopes; 100-2000 m. Fujian, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hunan, Shandong, Taiwan, Yunnan [widespread in Africa, E and SE Asia, and Oceania].

All parts of Flueggea virosa are used as medicine for eczema, rheumatoid arthritis, etc.