Slender low-growing branching herb up to 10 cm. tall, sparingly clad in long weak hairs; stems and branches slender, prostrate or arching, rooting at nodes; stock very small. Radical lvs in tufts at nodes, on very slender to almost filiform petioles 2-8 cm. long; sheath membr. Lamina 3-foliolate or 3-ternate, ± 1 cm. diam. Lflts long petioluled, entire, acute, or again 3-lobed. Peduncles up to 3 cm. long, axillary or us. opp. small cauline lvs. Fls 4-7 mm. diam.; sepals 5, fugaceous, ovate, membr., pilose; petals 5, narrow-oblong, clawed at base; gland 1 above claw. Achenes 5-10, somewhat flattened, glab.; style short, rather slender, hooked at apex.

2n = 32

2n = 32

Perennial; rosettes tufted on slender arching stolons. Lvs (1)-2-ternate; leaflets long-stalked, entire or ternatifid, membranous, sparsely hairy, (1)-2-5-(10) mm diam. Fls solitary, 3-4 mm diam.; pedicels very short, sparsely hairy, lf-opposed on stolons. Sepals spreading, hairy. Petals 5, yellow, lanceolate or narrow-obovate; nectary single, c. 1 mm from petal base, covered by a small rounded scale. Receptacle hairy, sometimes only sparsely. Achenes 5-15-(20), somewhat flattened, glabrous; body 1.5-2 mm long; beak curved, 0.5 mm long.