Stems 10-40 cm, weakly rhizomatous; roots fibrous. Leaves: leaflets irregularly 2-3-lobed, lobes sometimes with 1-3 secondary lobes, apex rounded, glandular-apiculate; surfaces abaxially glabrous. Inflorescences axillary, flowers solitary or loosely grouped in 2-4-flowered leafy racemes; peduncle not strongly clavate. Flowers: sepals 5.5-13.5 × 3.5-8.5 mm; stamens 25-50; filaments filiform to club-shaped, 1.8-5.8 mm. Follicles sessile, upright to widely divergent; body widely elliptic to widely obovate, 3.5-6.5 mm, gradually contracted into style beak; beak 1.7-3 mm. Seeds 2.1-2.7 mm, minutely pubescent. 2 n = 14.
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