Stem 10-35 cm, strongly rhizomatous; roots fibrous. Leaves abaxially glabrous; leaflets irregularly 2-3-lobed, lobes often with 1-3 secondary lobes; apex rounded, with shallow glandular notches. Inflorescences axillary, flowers solitary or occasionally in loose 2-flowered leafy cymes; peduncle not strongly clavate. Flowers: sepals (10-)12.6-15(-16.8) × (6.9-)8.2-10.2(-11.2) mm; stamens 40-60; filaments filiform to club-shaped, 5-8 mm. Follicles sessile, upright to widely divergent; body oblong, 11-15 mm, abruptly contracted into style beak; beak 0.8-1.7 mm. Seeds 2-2.5 mm, glabrous. 2 n = 14.
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