生活型

herb

形態特徵

• Rhizome short, hard; culms erect, tufted, 20-120 cm high, 1.5-5 mm across.
• Blade 10-40 cm long, 3-10 mm wide, usually covered with tubercle hairs; ligule membranaceous, ca. 0.5 mm long; sheath usually tubercle hairy, margin ciliated, shorter than internode.
• Panicle slightly contracted, 10-30 cm long. Spikelets lanceolate, 5-7 mm long, hispid hairy at basal part.
• Glumes ovate-lanceolate, subulatelanceolate at apex, nerves scabrous; lower glume 3-5-nerved, 3-5 mm long, ca. 3/5 as long as spikelet; upper glume nearly as long as spikelet, 5-nerved; lower lemma slightly shorter than lower glume, glabrous, 5-nerved, staminate; anthers ca. 1.5 mm long; upper lemma ca. 2.5 mm long, scabrous, midrib prolonged into a geniculate long awn; lateral nerves also prolonged into short awns; callus with soft hairs of ca. 0.7 mm long.
• This is a variable species with a bent awn flanked by two bristles on its lemma. The pedicel of the spikelets usually bears a well defined bristles or setae.

分布

• 世界 : Widely distributed in southeastern Asia.

引證標本

TAIPEI: Peitou, Kuoh 2265; Kuangyingshan, Hsu 1145. ILAN: Shiyuaniakou, Kuoh s. n. 22 Aug 1970. MIAOLI: Shihshan, Hsu 657. TAICHUNG: Houli, Hsu 4592. NANTOU: Kuantaochi, Hsu & Kuoh 10658; Wushe, Masamune et a1. s. n. 1962. CHIAYI: Fenchihu, Feng & Kao 4948. TAITUNG: Ansow, Hsu 1065; Chihpen, Koyama 13072*. HUALIEN: Shuakonlu, Kuoh 2622.

引用文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 444. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)