生活型

herb

形態特徵

• An erect annual herb, up to 20 cm high; stems glabrous, delicate.
• Leaves simple, alternate, sessile or subsessile, ovate or elliptic, 5-7 mm long, 2-3 mm wide, acute or mucronate at apex, obtuse at base, entire.
• Spikes up to 7 cm long; peduncles up to 4.5 cm long; flowers rose purple, 2 mm long.
• Capsules glabrous, reniform, flat, spinulate on the margins.

分布

• 台灣 : growing on the open grasslands of wet places in the lowlands.
• 世界 : Distributed north from Japan and South Korea through mainland China, the Philippines, India, Malaysia to tropical Australia.

引證標本

TAOYUAN: Chungli, Matuda s. n. 1919. NANTOU: Sun Moon Lake, Kudo & Sasaki s. n. 1929*.

引用文獻

• HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 3: 576. 1993.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)