Description from Flora of China
Diasperus anamiticus Kuntze; D. eriocarpus (Champion ex Bentham) Kuntze; D. villicaulis (J. D. Hooker) Kuntze; Glochidion anamiticum Kuntze; G. annamense Beille; G. esquirolii H. Léveillé; G. villicaule J. D. Hooker; Phyllanthus eriocarpus (Champion ex Bentham) Müller Argoviensis.
Shrubs or treelets to 5 m tall, monoecious; branchlets densely spreading yellowish or gray-yellow villous. Stipules subulate, 3-4 mm; petiole 1-2 mm, villous; leaf blade ovate, narrowly ovate, or broadly ovate, 4-8 × 1.5-3.5 cm, papery, densely yellowish or gray-villous, but denser abaxially, base obtuse, truncate, or rounded, zygomorphic, apex acuminate or acute; lateral veins 4 or 5 pairs. Flowers axillary, solitary or in 2-4-flowered clusters. Male flowers inserted along lower parts of branchlets; pedicels 4-6 mm; sepals 6, oblong-obovate, 2.5-4 mm, apex acute, sparsely pubescent outside; stamens 3, connate. Female flowers inserted at upper part of branchlets, subsessile; sepals 6, oblong, 2.5-3 mm, villous on both surfaces; ovary depressed globose, densely pubescent, 4- or 5-locular; style column cylindric, erect, ca. 1.5 mm, 4- or 5-lobed. Capsules depressed globose, 8-10 mm in diam., densely yellowish or gray-villous, 4- or 5-grooved, with a cylindric, persistent style column. Fl. and fr. almost throughout year.
All parts or roots and leaves are used as medicine for urticaria, mastitis, toothache, menorrhagia, dysentery, skin eczema, enteritis, etc.
Slopes, valley scrub, grassy areas, sometimes at forest margins; 100-1700 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Taiwan, Yunnan [Thailand, Vietnam].