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Dinghushan | Family List | Cyperaceae | Scleria

Scleria levis Retz.

珍珠茅

Description from Flora of China

Scleria hebecarpa Nees; S. hebecarpa var. pubescens (Steudel) C. B. Clarke; S. levis var. pubescens (Steudel) C. Z. Zheng; S. pubescens Steudel.

Perennials, stoloniferous. Rhizomes woody, covered with purple scales. Culms laxly tufted or scattered, 70-90 cm tall, 3-5 mm wide, 3-angled, scabrous, pubescent. Leaf sheath 1-8 cm, papery; sheath of leaves at culm base brown, not winged; sheaths on apical half of culm green, wing 1-3 mm wide; contraligule nearly semicircular, short, barbate; leaf blade linear, ca. 30 cm × 7-10 mm. Involucral bracts leaflike, basalmost to 13 cm; bractlets setaceous, auriculate at base, auricles barbate. Inflorescences paniculate, with 1 or 2 lateral branches; branches 3-8 × 1.5-3 cm. Spikelets 1 or 2 in a cluster, brown, unisexual, sessile, ca. 3 mm. Male spikelets narrowly ovoid to oblong-ovoid; glumes 1.5-3 mm, keeled, thickly membranous. Female spikelets usually at basal part of branch, narrowly ovoid; glumes oblong-ovate, broadly ovate, or ovate-lanceolate, keeled, with rust-colored short lines. Male flowers: stamens 3; anthers linear, ca. 1.3 mm. Female flowers: stigmas 3. Disk pale yellow, slightly narrower than nutlet, deeply 3-lobed; lobes lanceolate-triangular, margin reflexed. Nutlet white, spherical to ovoid, ca. 2 mm in diam., bluntly 3-sided, ± smooth to rugulose, apex tipped. Fl. and fr. Jun-Sep.

Dry places, grasslands on slopes, thickets in forests, scrub; near sea level to 1500 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, SE Xizang, Yunnan, Zhejiang [Bangladesh, Cambodia, India, Indonesia, Japan, Laos, Malaysia, Myanmar, Nepal, Papua New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; NE Australia, Pacific islands].

生活型: 草本

栽培植物: 野生

特征: 多年生簇生草本;

花期: 6--10

果期: 6--10

生境: 生于山坡灌丛或林下

用途: 全草为造纸原料及可供编织用;根药用,治痢疾、咳嗽、内伤及喉沙哑

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

中文别名: 旱三棱


 

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