生活型

herb

形態特徵

• Perennials, without conspicuous rhizome. Culms tufted, erect slender, 20-60 cm tall, 1 mm in diam.
• Leaves radical, cauline. Blades short-linear, 2-13 cm long, 2-4 mm wide, flat, soft, generally sparsely pilose on both surfaces; ligules 3.5 mm long, white hyaline; sheath sparsely pilose.
• Panicle erect, contracted, spike-like, lanceolate, 2-4.5 cm long, 5-10 mm wide, contiguous, somewhat interrupted with vestige branches below, light green, eventually yellow-brown; branches short, scabrous, sparsely pilose. Spikelets on pubescent short pedicel, lanceolate, 7-8 mm long, compressed, shiny, 3-flowered, lower to sterile, uppermost one perfect, fertile; glumes unequal, strongly folded with acute keel, keel scabrous above, sometime hairy on keel; lower glume narrowly ovate, hyaline, 3.5-4 mm long, 1-nerved; upper glume widely lanceolate, dotted, 7-8 mm long, 3-nerved.
• Both sterile lemmas narrowly oblong, 3 mm long, brownish, pubescent with brown hairs except at bilobed apex; lower lemma with a straight awn arising at 1/4 from base. Fertile lemma obovate, 2 mm long, glabrous, smooth, faintly 3-nerved. Palea lanceolate oblong, 1-nerved. Anthers 2, each 3.5-4 mm long.

分布

• 台灣 : at 2,000 m alt. in central Taiwan.
• 世界 : Native to Europe and Siberia; introduced to Japan as a forage grass.

引證標本

NANTOU: Jenai Hsiang Tienchih, Kuoh s. n. 10 Apr 1999.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 350. 2000.  (Fl. Taiwan 2nd edit.)