Stems us. above ground, filiform or nearly so, creeping, branching, rooting, at nodes. Lvs on filiform petioles up to ± 2 cm. long; stipules minute, fimbriate. Lamina glab. or with a few cilia, 3-partite to base; 1flts membr., obovate-cuneate, sessile or subsessile, 2.5-5-(10) mm. long, with rounded lobe at apex and lateral pair of blunt teeth, to retuse or entire; margins slightly thickened and recurved. Umbels simple, (3)-5-6-(10) -fld, on filiform, branched, ± ciliolate peduncles up to c. 2 cm. long. Involucral bracts narrow-linear to narrow-lanceolate, acuminate. F1s minute, on pedicels ± 1-(3) mm. long; petals ovate, acute. Fr. tetragonous, ± 3 × 2 mm.; mericarps distinctly 5-ribbed.

2n = 80