生活型

herb

形態特徵

• Annuals, or biennials. Culms ascending, 30-70 cm tall, 3.5 mm wide.
• leaf blade chartaceous, linear, 5-18 cm long, 2-5.5 mm wide, sharp at apex, veins conspicuous, puberulous above, villous beneath. Sheath loosely villous. Ligule membranaceous, tongue shaped, rounded at apex, 3 mm long.
• Inflorescence an open panicle, 7-20 cm long. Spikelets with 4-8 florets, elliptic, 45 mm long, 4 mm wide, slightly laterally compressed. Pedicels minutely hispid. Lower glumes chartaceous, glabrous or loosely strigose, linear-lanceolate, sharp at apex, 20 mm long, 1-nerved. Upper glumes subcoriaceous, lanceolate, sharp at apex, 15-30 mm long, longer than 10 mm, 3-nerved, minutely strigose. Florets 22-32 mm long, with rachilla.
• Lemmas subcoriaceous, lanceolate, margins inrolled, shortly bilobed at apex, 22-32 mm long, longer than 20 mm, with awn, with a awn longer than lemma, 5-7-nerved, hairy, densely pubescent abaxially surface. Paleas membranaceous, linear oblong, round or truncate at apex, 12-16 mm long, 2-nerved, ciliate on nerves. Callus glabrous. Anthers 2 mm long. Caryopsis linearoblong, 10 mm long, hilum linear.

分布

• 台灣 : First collected in Taiwan at Anmashan in 1978.
• 世界 : Native to the Mediterranean region of Europe, widely naturalized in North Hemisphere.

引證標本

TAICHUNG: Anmasshan forest trail 43K, Kuo 9611.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 371. 2000.  (Fl. Taiwan 2nd edit.)