生活型

herb

形態特徵

• Annuals; culm bases branching and rooting.
• sheath laterally compressed, keeled; ligule ca. 0.5 mm long.
• Spikes digitately arranged at culm tip. Spikelets 3-flowered, ca. 2.5 mm long (excluding awn), sessile. Rachis ciliate, base of spikelet silky; glumes membranaceous, 1-nerved; lower glume ca. 1.5 mm long, lanceolate, acute; upper glume ca. 1.2 mm long, with a sinus at apex, midrib prolong into an awn; fertile lemma ovate, ca. 2.5 mm long, subcoriaceous, margins covered with silky hairs, midrib extending into a long awn arising from sinus; palea as long as lemma, rounded at apex, 2-keeled; sterile lemma coriaceous, truncate, with a sinus, 3-nerved, midrib prolonged into a long awn of ca. 1.6 mm long.
• Caryopsis ca. 1.6 mm long, ellipsoid; embryo 3/4 their length of caryopsis.
• The inflorescence is pale yellow and the sterile lemma is wedge shaped.

分布

• 台灣 : Local in lowlands, especially in coastal regions of southern Taiwan.

引證標本

TAIPEI: Chinkuashih, Hsu & Kuoh 10581. TAICHUNG: Wuchi, Nee s. n. 27 Sep 1970. CHIAYI: Tongshih, DeVol 8335. TAINAN: Tainan, Keng s. n. 25 Jul 1956. KAOHSIUNG : Kaohsiung, Nakahara 635. PENGHU: Hsu & Kuoh 14015, Huang & Kao 6862, TAITUNG: Lutao Is., Sasaki s. n. Jul 1935.

引用文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 403. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)