生活型

herb

形態特徵

• An erect annual herb, up to 20–80 cm high,clothed with long silky hairs.
• Leaves sessile, linear, 7–12 cm long, 6–8 mm wide, the upper surface hairy on costa, the lower surface densely clothed with silky hairs; stipules very small.
• Racemes terminal, 2–12-flowered; calyx 2–3 cm long covered with long brown hairs, the upper teeth oblanceolate, the lower teeth lanceolate, 10–20 mm long.
• Pods glabrous, about 15 mm long, 20–30-seeded.(friut長寬seed長寬=31:12:7:4)

分布

• 台灣 : In grassland, river bank and slope of hill, at the elevation of below 1,200 m high, throughout the island.
• 世界 : In tropical Asia

引證標本

MIAOLI: Kao 3745. PENGHU: Chimetao, Huang k160. PINGTUNG: Kenting Park, Tateishi 18512.

參考文獻

• Huang, S. F. & T. C. Huang, Taiwania 32(1): 11-118. 1987.
• Huang, S. F. & T. C. Huang, Flora of Taiwan, second edition 3: 221. .  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)