Fimbristylis tristachya var. subbispicata

水蔥

Fimbristylis tristachya R. Br. var. subbispicata (Nees & Meyen) T. Koyama

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

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名彙資訊

學名發表文獻

Koyama, Journal of the Faculty of Science, Imperial University of Tokyo. Section III, Botany 8: 114. 1961. (J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot., 東京帝國大學理學部紀要, 第三類, 植物學)

台灣首次記錄發表文獻

Liu, Flora of Taiwan, second edition 5: 279. 2000. (Fl. Taiwan 2nd edit., 台灣植物誌第二版)

異名

Fimbristylis subbispicata Nees & Meyen

Koyama, Flora of Taiwan 5: 237. pl. 1329. 1978. (Fl. Taiwan, 台灣植物誌)

各語言俗名

中

山藺.
日

やまい.

參考資料

Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan, 台灣植物名彙)

特徵描述

生活型

herb

形態特徵

Perennial with very short rhizome. Culms densely tufted, 7-60 cm by 0.5-0.8 mm, compressed trigonous, smooth.
Leaves basal, few; blades filiform, to 25 cm by 0.8-1.2 mm, canaliculate, obtuse, scabrid on upper margins; sheaths brownish cinnamon, ventrally ferrugineous, membranaceous, truncate at orifice; ligule absent.
Inflorescence of a single (very rarely 2) terminal spikelet; involucre bract 1, green midvein usually prolonged beyond glume apex forming a setaceous erect blade 7-17 mm long. Spikelet ovoid, ellipsoidal or lanceolate-oblong, 0.8-3 cm by 4-8 mm, terete, densely many-flowered, brownish.
Glumes many per spikelet, spiral, ovate, 5-7 mm by 3-4.5 mm, mucronate, chartaceous, yellowish or orange-brown, keel greenish, several nerved, ending in a mucro apex. Stamens 3; anthers ca. 2 mm long. Style weakly flattened, fimbriate, slightly dilated at base; stigmas 2. Achenesobovate-orbicular, 1.5-1.7 mm by 1.2-1.5 mm, shortly stipitate, biconvex, pale-brownish, slightly shiny, obscurely cancellated by rows of isodiametrical epidermal cells.

分布

台灣 : common in wet gresslands.
世界 : Japan, Korea and China.

引證標本

KEELUNG: Pengchiayu, Huang 15804. TAIPEI: Peitou, Sasaki s. n. HSINCHU: Shanchiao, Hsu 13904.YUNLIN: Huwei, Ashikaga 110. PINGTUNG: Kuraru, Matuda 276.