生活型

herb

形態特徵

• A perennial, slender, branched herb, glabrous, up to 20–50 cm high.
• Leaflets 2, lanceolate, 1–2.5cm long, acute or acuminate; stipules lanceolate, with a long spur.
• Racemes slender, 2–6 cm long, many-flowered; flowers yellow, 8–10mm long; bracts ovate, 8–10 mm long, quite hiding the flower and pod.
• Pods 2–6-jointed, oblong, the joints 3–4 mm long, densely prickly.

分布

• 台灣 : In the open wasteland, grassland, at elevation below 1500 m high, throughout the island.
• 世界 : Widely spread all over the tropical regions;

引證標本

TAICHUNG: Tachiachi, Huang 3111. PINGTUNG: Kenting, Huang 1807.

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: 395. .  (Fl. Taiwan 2nd edit.)