Cyperus mindorensis

單穗水蜈蚣

Cyperus mindorensis (Steud.) Huỳgh

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

Huỳgh. 2014. Phytotaxa 166: 39.

異名

Kyllinga nemoralis (J. R. & G. Forst.) Dandy ex Hutch. & Dalzell

Koyama. 1978. Flora of Taiwan 5: 289. (Fl. Taiwan)

各語言俗名

中

單穗水蜈蚣
客

Yong moi cò
日

おおひめくぐ

參考文獻

Yang. 1982. A list of plants in Taiwan. (List Pl. Taiwan)
Hsiao-Ting Wu. 2007. Plant use knowledge of Hakka ethnobotany in Dahu Township, Miaoli county. Master thesis. National Pingtung University of Science and Technology. (Plant use knowledge of Hakka ethnobotany in Dahu Township, Miaoli county.)
Larridon, I.,...Baker, W. J. 2021. Journal of Systematics and Evolution 59(4): 852-895.

特徵描述

生活型

herb

形態特徵

Perennial, laxly tufted with long creeping rhizome. Culms close together or spaced along rhizome, erect, 10-45 cm tall, triquetrous, not thickened at base.
Leaves many, usually shorter than culm; blades linear, 2-5 mm wide, rather soft, flattish; sheaths brown to purplish brown.
Inflorescence a single head, bearing a globose central spike and 2 or 3 small lateral spikes, central spike 5-10 mm long by 5-7 mm across, densely bearing many spikelets, whitish; leafy bracts 3 or 4, spreading to reflexed, lowest to 30 cm long. Spikelets ovate-elliptic to lanceolate-ovate, 2.7-3.5 mm long, ca. 1.5 mm wide, 1-flowered.
Glumes usually 5, lowest two smaller and narrow, 1-l.5 mm long, remaining glumes 2.5-3.5 mm long, boat shaped, thinly membranaceous, whitish and eventually becoming straw-colored, variegate with rusty brown, 3- or 4-nerved on each side, broadly winged on acute green keel, wing serrulate, keel ending in a short usually recurved cusp. Achenes oblong-obovate or suborbicular, biconvexed, 1.25-1.5 mm long, maturing brownish; stigmas 2. Stamens 3.

分布

世界 : Pantropical; common in the Old World tropics, rare in American tropic grasslands and forest floors.

引證標本

TAIPEI: Yuanshan, Nagasawa s n. CHIAYI: Wufeng, Kuoh 3939. TAINAN: Tainan, Shimada 4461. PINGTUNG: Nanjenshan, Kuoh 4120. TAITUNG: Chihpen, Ohwi 1355. Lanyu Is., Moo 2322.