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Dinghushan | Family List | Umbelliferae | Hydrocotyle

Hydrocotyle nepalensis Hook.


Description from Flora of China

Hydrocotyle polycephala Wight & Arnott.

Stems robust, decumbent 5–45 cm long. Petioles 4–27 cm, distally densely pubescent; leaf blade orbicular or reniform, 2–5 × 3.5–9 cm, shallowly 5–7-lobed, thin-papery, both surfaces strigose, base cordate, palmately 7–9-nerved, lobes triangular to rounded, crenate. Umbels several to numerous, fascicled in axils and ends of stems; each umbel densely capitate, 20–60-flowered; peduncles 0.5–2 cm, shorter than petioles, puberulous; bracts ovate or obovate, minute, membranous. Pedicels very short, 0.5–1.5(–2) mm in fruit. Petals white or with purplish red stains. Stylopodium depressed; styles incurved when young, spreading in fruit. Fruit pale brown or deep purple with dark stains when mature, broadly oblate-globose, 1–1.2 × 1.5–1.8 mm. Fl. and fr. May–Nov.

This species has reputed medicinal value. It is part of the highly variable complex of Hydrocotyle javanica Thunberg, which extends from Nepal east to Japan and south through Indonesia into Australia. The umbels fascicled at the nodes unite this group and differentiate it from other species of Hydrocotyle, but its classification is in need of revision across its whole geographic range.

Mountain slopes, shady wet grassy places, stream banks; 300–3600 m. Anhui, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Xizang, Yunnan, Zhejiang [Bhutan, NE India (Assam), Myanmar, E Nepal, Sikkim, Vietnam].

生活型: 草本

栽培植物: 野生

特征: 多年生匍匐草本;叶圆肾形,直径4--8厘米,波状浅裂,边缘有钝齿,叶柄长10--20厘米;花序簇生于枝顶部

花期: 5

生境: 见于九坑山谷林中溪边阴湿处

用途: 全草药用,有清凉解热、散瘀消肿、止血止痛之效

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


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