生活型

herb

形態特徵

• An erect annual herb; branches with retrose hairs.
• Leaves trifoliolate; leaflets membra-naceous, oblong, 10–15 mm long, 5–8 mm wide, obtuse or somewhat acute at the apex; stipules narrowly ovate, 5–8 mm long, persistent.
• Flowers 5 mm long, pink; bracts as long as the calyx tube, ovate, obtuse, with 5–7 veins; calyx 3 mm long, 5-cleft, the teeth ovate, half as long as the calyx; cleistogamous flowers persent; calyx the same as in papilionaceous flowers.
• Pods 3.5 mm long, flattened, slightly spherical, clothed with appressed hairs.

分布

• 台灣 : In the open place, including roadside, wasteland, grassland, river bank, at elevation below 500 m high, in the northern part.
• 世界 : Japan, Korea, Manchuria and China;

引證標本

TAIPEI: Huang 7924; Hsichih, Ohashi et al. 12025. ILAN: Suao, Huang & Huang 13109. HSINCHU: Kuanshe, Huang et al. 14595.

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: 314-317. .  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)