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Dinghushan | Family List | Dioscoreaceae | Dioscorea

Dioscorea glabra Roxb.

光叶薯蓣

Description from Flora of China

Dioscorea glabra var. longifolia Prain & Burkill; D. hongkongense Uline ex R. Knuth; D. nummularia Roxburgh (1832), not Lamarck (1789).

Tubers cylindric, developed from short, thick rhizome; cork deciduous; transverse section white, drying light yellow. Stem twining to right, glabrous, prickly at base. Leaves alternate basally on stem, opposite distally on stem, simple; leaf blade drying blackish, usually ovate or long elliptic-ovate to lanceolate, 5--17(--24) × 0.5--10(--13) cm, glabrous, basal veins 5--9, base cordate to truncate or rounded, rarely sagittate or hastate, apex acuminate or caudate. Male spikes solitary or 2--4 together, 1--2.5 cm, usually in narrow, axillary panicles to 14 cm; rachis straight. Male flowers: outer perianth lobes orbicular, ca. 1 mm, inner ones obovate, smaller but thicker than outer; stamens 6, inflexed. Female spikes solitary or paired, to 25 cm. Capsule not reflexed, oblate, 1.5--2.5 cm; wings 1.2--2.2 cm wide. Seeds inserted near middle of capsule, winged all round. Fl. Sep--Dec, fr. Dec--Jan.

Evergreen broad-leaved forests, scrub forests, mountain slopes, valley sides, roadsides; 200--1500 m. W Guangxi, S Yunnan [Bhutan, Cambodia, India, Indonesia, Laos, Malaysia, Myanmar, Thailand, Vietnam].

生活型: 藤本

栽培植物: 野生

特征: 草质缠绕藤本;

花期: 夏秋

果期: 夏秋

生境: 见于东岗坑山谷林缘

用途: 块茎健胃利水,治消化不良

门中名: 种子植物门

亚门中名: 被子植物亚门

纲中名: 单子叶植物纲


 

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