生活型

herb

形態特徵

• A twining herb, with very slender stems, pubescent.
• Leaves trifoliolate; terminal leaflets round-rhomboid, 1–3 cm long and wide, acute at the apex, round at the base, three main veins impressed below, the lower surface distinctly dotted with small, reddish glands; stipules minute, linear, 2 mm long.
• Flowers yellow, 3–4 axillary on short peduncles; calyx gland-dotted, pubescent, 4 mm long.
• Pods linear, flat, recurved, 3–5 cm long, 6–7 mm wide, 6–8-seeded; seeds reniform; hilum elliptic.(seed長寬厚=12:9:5)

分布

• 台灣 : In the open place, including roadside, wasteland, grassland and margin of thicket, at elevation below 500 m high, in the central and southern parts.
• 世界 : In Asia and Australia;

引證標本

CHANGHUA: Tienchung, Huang k105. KAOHSIUNG: Hsiaolin, Huang 3314*; Chiahsien, Huang 14502.

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