生活型

herb

形態特徵

• Prostrate herbs; stems densely barbellate hairy, glabrescent.
• Leaves oblanceolate or spatulate, 1.5–2 cm long, 3–5 mm wide, barbellate hairy on lower surface and at the base of upper surface, apex obtuse to rounded.
• Inflorescences sessile, ovoid to globose, usually barbellate hairy at base; bracteoles 3, scarious, white, ovate-oblong, apex acute to slightly mucronate, barbellate hairy along nerves, outer 3 bracteoles, 3-nerved in lower half, inner 2 somewhat laterally compressed, 1-nerved, slightly shorter than outer ones; stamens 5, anthers ellipsoid, yellow; staminodes 3–4-toothed, ca. half as long as stamens; pistil broadly obcordate, stigma capitate.
• Utricle obcordate, brown.

分布

• 台灣 : naturalized in the central and south parts.
• 世界 : Native to tropical America.

引證標本

CHANGHUA: Lukang, Kuoh 1618; Fubao, Guo, Lay & Chow 056. PINGTUNG: Hengchun, Huang & Hsiao 8220; Kenting, Kao 10582.

引用文獻

• LIU, TANG-SHUI and KAO, MUH-TSUEN, Flora of Taiwan, second edition 2: 395. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)