革叶算盘子 ge ye suan pan zi

Phyllanthus daltonii Müller Argoviensis in A. Candolle, Prodr. 15(2): 310. 1866; Diasperus daltonii (Müller Argoviensis) Kuntze.

Shrubs or trees 3-10 m tall, monoecious, glabrous except for petioles and ovary pubescent to glabrous; branches angular, brown when dry; branchlets slender, spreading. Stipules triangular, ca. 1 mm; petiole 2-4 mm, puberulent to glabrous; leaf blade lanceolate or elliptic, sometimes falcate, 3-12 × 1.5-3 cm, papery or subleathery, abaxially gray-white, adaxially gray-green, base broadly cuneate, apex acuminate or shortly so; lateral veins 5-7 pairs, elevated below. Flowers in axillary clusters, with 2 bracts at base, male in proximal axils, female in distal axils. Male flowers: pedicels 5-8 mm, connate. Female flowers subsessile; sepals as in male; ovary depressed globose, puberulent to glabrous, 4-6-locular; style column prominently clavate, 3-6-fid at apex. Capsules depressed globose, 1-1.5 cm in diam., brown when dry, 4-6-grooved, with persistent sepals at base. Fl. Mar-May, fr. Apr-Oct.

Open forests, scrub on slopes; 200-1700 m. Anhui, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Shandong, Sichuan, Yunnan, Zhejiang [India, Malaysia, Myanmar, Thailand, Vietnam].

The bark, leaves, and fruits contain copious tannins.