生活型

herb

形態特徵

• Annuals; culms tufted and base geniculate, nodes usually bearded; ligule membranaceous, rounded, ca. 1 mm long.
• Spikelets paired, dimorphic; pedicelate spikelets darker than sessile. Sessile spikelets ca. 4 mm long, oblonglanceolate, dorsally concave, villous below; pedicei and rachis villous; glumes papery, pubescent dorsally, margins slightly membranaceous, ciliate; lower glume pointed, 2-keeled, ca. 4 mm long, 5-nerved; upper glume pointed, as long as lower glume, 3-nerved; lower lemma oblong-lanceolate, acute, slightly bifid, awnless, ca. 2 mm long, nerves obscure; upper lemma linear, as long as lower, with a terminal long awn of ca. 1 cm long, 1-nerved, upper palea oblong-lanceolate, ca. 0.5 mm long; anthers ca. 2 mm long.
• A common grass in dry, poor soils in southern Taiwan.

分布

• 世界 : Widely from northwestern Himalaya to the Tibetan plateau at 4,000 m. Also in southern Europe, North Africa and extending to China and Taiwan.

引證標本

TAIPEI: Tanshui, Kao 5526. HSINCHU: Hsinchu, Masamune s. n. 5 Oct 1930. TAICHUNG: Taichung, Kuoh 1891. CHANGHUA: Tsaopu, Hsu 1093. YUNLIN: Huwei, Cheng & Kao 3057. TAINAN: Tainan, Hsu s n. 30 Jun 1960, Hsu 6465. KAOHSIUNG: Hsiaoliuchu, Chuang 3126. PENGHU: Shiyu, Hsu & Kuoh 14036. PINGTUNG: Tungkang, Hsu 126; Kenting, Hsu 519; Fengliao, Hsu 957*. TAITUNG: Chihpen, Sasaki 326.

引用文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 527. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)