生活型

herb

形態特徵

• Perennials. Culms ascending, 28-100 cm tall, 2 mm wide.
• leaf blade chartaceous, linear, 12-28 cm long, 3-5 mm wide, sharp at apex, veins conspicuous, loosely puberulous to glabrous above, villous to glabrous beneath. Sheath villous to glabrous. Ligule membranaceous, rounded or acute at apex, 2 mm long.
• Inflorescence an open or contracted panicle, 9-18 cm long. Spikelets with 5-10 florets, elliptic or lanceolate or linear-lanceolate, 11-25 mm long, 2-4 mm wide, slightly laterally compressed. Pedicels minutely hispid. Lower glumes membranaceous on margins, glabrous to minutely hispid, lanceolate to linear-lanceolate, sharp at apex, 4-6 mm long, 1-nerved.
• Upper glumes chartaceous, broadly lanceolate, sharp at apex or acute to obtuse at apex, 5-8 mm long, shorter than 10 mm, 3-nerved, minutely strigose to glabrous. Florets 8-9 mm long, with rachilla. Lemmas chartaceous, lanceolate to elliptic, margins inrolled, rounded at apex or acute at apex, 8-9 mm long, shorter than 20 mm, with awn, with a awn longer than half to nearly as long as lemma, 3-nerved, hairy or glabrous, only slightly hairy on base of nerves. Paleas membranaceous, linear oblong, round or truncate at apex or acute at apex, 6-7 mm long, 2-nerved, ciliate on nerves to minutely ciliate on nerves. Callus glabrous. Anthers 2.5 mm long. Caryopsis linear-oblong, 6 mm long, hilum linear.

分布

• 台灣 : Common in the alpine regions.
• 世界 : Malesia, Philippines.

引證標本

ILAN: Nanhutashan, Kao 5200; Hsu 5907; Suzuki 17627. HSINCHU: Itseshan, Shimada 509. TAICHUNG: Wuling, Huang 7055; Hsuehshan, Koyama 23944; Lu 20041. NANTOU: Meifeng, Tsai 11; Hohuanshan, Peng 8312; en route from Tongpu to Tzuchung, Hsu 7432; Patungkuan, Huang 8505, Kuoh 14492; en route from Paiyun Hiking Resort to Monroo cliff, Hsu 6331. CHIAYI: Yushan, Sasaki s. n. 1 Nov 1933; en route from Tatachia to Paiyun Hiking Resort, Kuoh 1283; en route from Tatachia to Chien-hon-ko, Chen 11339; Nan-tau-hsien-chi, Kuoh 10246. KAOHSIUNG: Fukuyama s. n. 12 Jul 1935; en route from Tienchih to Yakou on South Cross Highway, Huang 8890; Guan-shan-lin, Kuoh 12471. TAITUNG: Takuanshan, Peng 11724.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 318. 2000.  (Fl. Taiwan 2nd edit.)