Description

Key Characters:

Growth Form: Annual herbs, pubescent to glabrescent.

Stems: Stems erect, as­cending, or prostrate.

Roots:

Leaves: Leaves compound (pinnately trifoliolate). Alternate. Leaflets obovate to oblong-elliptic, 8-16 × 4-8 mm. Apex rounded to emarginate. Base cuneate. Margins entire proximally, serrate distally. Lateral veins 5-8 pairs. Petioles shorter than or equal to leaflets; lat­eral leaflets sessile, terminal petiolule 3-7 mm. Stipules ovate to oblong, 5-8 mm, adnate to petiole for 1/2 their length, apex acuminate.

Flowers: Flowers 20-40, imbricate in globose or cylindric racemes, 8-13 × 7-10 mm; peduncle 1-3 cm; involu­cre and bracts absent; pedicels 1-1.8 mm, reflexed after anthe­sis. Calyx white, 2-2.8 mm, membranous, glabrous to sparsely pubescent, veins 5. Corolla yellow, turning brown, (3-)5-6 mm; standard broadly spatulate, striate, apex emarginate.

Fruit: Legume long ovoid; ca. 3 mm; stipe ca. 1 mm. Seeds 1 per fruit; brown; convex-ovoid; ca. 1 mm.

Ploidy:

Habitat:

Elevation Range: