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Dinghushan | Family List | Euphorbiaceae | Euphorbia

Euphorbia hirta L.


Description from Flora of China

Chamaesyce hirta (Linnaeus) Millspaugh.

Herbs, annual, 30-60(-70) cm tall, usually few branched. Root fibrous, 3-5 mm. Stem branched from middle or above, ascending to erect, rarely prostrate, ca. 3 mm thick, with mixture of long yellow-brown multicellular hairs and much shorter white hairs. Leaves opposite; stipules membranous, triangular, 0.8-1.7 mm, caducous; petiole 1-3.5 mm; leaf blade lanceolate-oblong, long elliptic, or ovate-lanceolate, 10-50 × 3-16 mm, adaxially green to red, sometimes with purple blotch along midrib, abaxially gray-green, both surfaces pilose, denser abaxially, base slightly oblique, margin entire or few serrulate below middle, finely serrulate above middle, apex acuminate or obtuse. Cyathia in dense, often headlike, pedunculate cymes at upper nodes, peduncle to 25 mm, all parts very hairy; involucre campanulate, ca. 1 × 1 mm, pilose, marginal lobes 5, triangular-ovate; glands 4, red, rounded to transversely elliptic, center slightly sunken, appendages white to reddish, narrowly elliptic to obdeltoid, to 0.3 × 0.2 mm, margin entire to slightly undulate. Male flowers 4 or 5; anthers red. Female flower: pedicel short, exserted from involucre; ovary 3-angular, sparsely pilose; styles free; stigma slightly 2-lobed. Capsule 3-angular, 1-1.5 × 1-1.5 mm, smooth, shortly pilose; fruiting peduncle to 1.5 mm. Seeds subglobose-tetragonal, 0.7-0.9 × 0.4-0.5 mm, reddish, sides transversely furrowed; caruncle absent. Fl. and fr. Jun-Dec. 2n = 18*.

This species is used medicinally.

Roadsides, fields, scrub, open forests. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangxi, Sichuan, Taiwan, Yunnan [tropical and subtropical regions in both hemispheres].

生活型: 草本

栽培植物: 野生

特征: 草本;茎枝被粗长毛,叶边缘有细锯齿;花瓣状附片与腺体等宽或略宽

花期: 7

生境: 生于屋旁、田野、旷地、山坡、谷地、路旁

用途: 全草入药,收敛解毒,镇痛止痒、利尿消肿,治肠炎、痢疾、肺炎、急性支气管炎、通乳、脓胞疮、足癣、虫伤搔痒等;可解大茶药(断肠草)中毒

门中名: 种子植物门

亚门中名: 被子植物亚门

纲中名: 双子叶植物纲

中文别名: 大飞扬、奶汁草


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