生活型

herb

形態特徵

• Perennials. Culms ascending, 30-40 cm tall, 1.5 mm wide.
• leaf blade chartaceous, linear, 15-24 cm long, 3-4 mm wide, sharp at apex, veins conspicuous, glabrous above, glabrous beneath. Sheath glabrous. Ligule membranaceous or chartaceous, triangular shaped, rounded or acute at apex, 0.5 mm long.
• Inflorescence an open panicle, 8-15 cm long. Spikelets with 7-8 florets, lanceolate, 20-24 mm long, 6 mm wide, slightly laterally compressed. Pedicels minutely hispid to glabrous. Lower glumes chartaceous, strigose to glabrous, lanceolate to narrowly lanceolate, acute at apex, 9-11 mm long, 3-nerved. Upper glumes chartaceous, lanceolate to broadly lanceolate, sharp to obtuse at apex, 11-12 mm long, 5-nerved, minutely strigose to glabrous. Florets 14-15 mm long, with rachilla. Lemmas chartaceous, lanceolate to elliptic, margins inrolled, rounded or acute at apex, 14-15 mm long, shorter than 20 mm, with a short awn less than 1/2 their length of lemma, 7 to 8-nerved, hairy, densely hirsute on marginal region of backside.
• Paleas membranaceous, linear oblong, round, truncate or acute at apex, 9-10 mm long, 2-nerved, ciliate on nerves. Callus glabrous. Anthers 2.5 mm long. Caryopsis oblong to linear-oblong, 8 mm long, hilum linear.

分布

• 台灣 : the alpine region.

引證標本

HSINCHU: Tapachienshan, Hsu 12194. TAICHUNG: Hsuehshan, Shimada 2611. ILAN: Nanhutashan, Suzuki s. n. 17 Jul 1937; Fukuyama 4080; Hsu 5966; Lu 23405.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 370. 2000.  (Fl. Taiwan 2nd edit.)