生活型

herb

形態特徵

• A decumbent, branched annual or perennial herb, up to 30 cm long, with equal size of biforked hairs.
• Leaves imparipinnate, alternate, with 4–6 leaflets; leaflets alternate, oblanceolate, oblong to obovate, 8–18 mm long, 2.5–5 mm wide, the apex obtuse, mucronate, the base cuneate or acute, the margin entire, the veins obscure, membranaceous, at margin of upper surface biforked hairy.
• Inflorescences of axillary racemes, 30-flowered, 18–45 mm long, the peduncles 9–10 mm long, the bracts narrowly triangular, 1.8 mm long, 0.7 mm wide; flowers 5–6 mm long; calyx 5-lobed, the lobes narrowly triangular, 2–2.5 mm long, 0.5-0.6 mm wide; standard bloodish red, broadly elliptic, 4.5–5 mm long, 4–4.5 mm wide, hairy inside; wings 5–5.5 mm long, 1.5–1.7 mm wide, ciliate at basal part of margin; keels 5–6 mm long, 1–1.2 mm wide, ciliate, with spur 0.5-0.6 mm long; stamens 10, diadelphous, 3–3.5 mm long; anthers elliptic, 0.35 mm long, 0.25 mm wide; style penicillate; stigma capitate; ovules 9–10.
• Pods quadrangular, straight, 21–23 mm long, 1.8–2 mm wide, hairy, beaked, 1–1.5 mm long at end; endocarp dotted with yellowish brown, 7–10-seeded; seeds yellow, hexagonal, with rounded pits, 1.2–1.5 mm long, 1 mm wide.

分布

• 台灣 : It grows in the dry and open meadow on the coral rocks about 50 m above sea level.

引證標本

PINGTUNG: Maopitou, Huang, et al. 14662* (Holotype, Isotypes, TAI!), Wu 1357, Huang & Chen 4353.

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: 305-310. .  (Fl. Taiwan 2nd edit.)