生活型

herb

形態特徵

• Tufted annuals or perennials, then with a few cataphylls at base, without rhizome or stolons, branching at base, glabrous. Culms to 60 cm long.
• Sheaths smooth; uppermost ligules quadrangular, 0.75-2 mm long, apex rounded, erose; blades erect, flat, to 18 cm long, 3.5 mm wide, smooth to scaberulous.
• Panicle contracted, somewhat lobed, rather densely spikeld, 8.5-19 cm long, 1-3 cm wide, branches usually scaberulous, lowermost 2-8 together, longest one 4.6-7.5 cm long, shorter ones often spikeled nearly to base. Spikelets 1.6-2.25 mm long.
• Glumes unequal, lower glume longest, ovate-lanceolate. Rachilla process absent. Lemma 1.25-1.6(-1.7) mm long, 0.6-0.82 times as long as as lower glume; acutish, 5-nerved, Trichodium-net well-developed; callus oblique, glabrous or with an occasional to 0.1 mm long hair; awn absent. Palea 0.2-0.5 mm long, 0.13-0.36 times as long as lema. Anthers 0.2-0.5(-0.55) mm long, 0.15 times as long as lemma.

分布

• 世界 : Northern Europe to Sachalin, Japan, Taiwan.

引證標本

TAIPEI: Huanjipiliao, Kuoh 14397. HSINCHU: Tapachienshan, Hsu 12621. TAICHUNG: Lishan, Chen 20062; Pahsienshan, Hsu 424. NANTOU: Chitous, Hsu s. n. 15 Jul 1954. CHIAYI: Jushan, Chen 16396; Alishan, Kuoh 7454; Hsu s. n. 28 Sep 1967. KAOHSIUNG: South cross highway Tienchi, Chen, 10472; South cross highway 124K, Kuoh 11556; 124K, Kuanshan, Fu s. n. 12 Jul 1935. PINGTUNG: Hsiakueihu, Lu 20041.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 339. 2000.  (Fl. Taiwan 2nd edit.)