生活型

herb

形態特徵

• An ascending, branched annual herb;
• Leaves simple, oblong to elliptic, emarginate and mucronulate at apex, obtuse to broadly rounded or subcordate at base, glabrous above, dispersedly puberulent at margin and beneath; petioles slender, pulvinate, stipellate. Pseudoracemes terminal, simple to compound.
• Flowers usually in pairs at each node, pedicellate, the pedicel, slender, 2–5 mm long; peduncles glabrous, 5–30 mm long; calyx connate at base, the tube about 1 mm long, ovate to elliptic 6–8 mm long, 1.5–3 mm wide, entire, ciliate along upper margin; corolla orange yellow, pinkish around centre on standard, pinkish purple on wing, pinkish purple on keel; stamens 10, diadelphous; ovary linear with minute glandular hairs apically; style terete; stigma capitate;
• loments included in the persistent calyx, 3–5-joints, transversely rugose, 6 mm long, 1.5 mm wide; seeds compressed, glabrous.

分布

• 台灣 : Newly naturalized in dry and open wasteland, roadside or gardens.
• 世界 : Africa, Madagascar, Himalaya, India, Sri Lanka, southeastern Malaysia, China, and Australia

引證標本

PINGTUNG: Kenting, Tateishi 18509, Huang 14532*, 14544*.

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: 194-196. .  (Fl. Taiwan 2nd edit.)