Perennial, forming large patches; stems slender. Lvs simple, delicate, pale glossy green, glabrous, 5-20 mm diam., divided to ⅕-⅓ of radius into usually 5 segments; segments broadly oblong to obovate, each again usually 3-lobed and crenate or serrate; teeth with blunt cartilaginous points; margins flat; petiole glabrous or with a few retrorse hairs. Umbels simple, 2-10-flowered, mostly subsessile; peduncles much < lvs. Fls sessile or subsessile. Fr. glabrous, hairy or often with one mericarp hairy and the other glabrous, 1.3-1.5 × 1-1.3 mm, acute on dorsal edge; ribs slightly raised, slender.
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