Hydrocotyle pilifera var. glabrata

Erect annual to c. 12 cm high, glabrous to glabrescent; stems branching from base, primary branch often terminating in an umbel and overtopped by secondary branches. Cotyledons oblong, 4-8 mm long, present when fruit mature. Leaf-lamina reniform, 5–25 mm across, with scattered hairs mostly on the lower surface, (3–)5-lobed to about midway to base; lobes cuneate, crenate to toothed; petiole 1.5–2.5 cm long, sparsely hairy to glabrous; stipules conspicuous, membranous, ovate, more or less entire, white. Umbels simple, leaf-opposed, globose, 3–6 mm diam., 3–15-flowered; peduncle 5–18 mm long; pedicels 1–1.5 mm long. Petals yellow-white. Fruits c. 1.3 mm long, c. 2 mm wide, red-brown; mericarps with very obtuse and thick dorsal and intermediate ribs connected by 5 or 7 thick, blunt transverse ridges with deep depressions between ridges; area between intermediate ribs slightly colliculate.  Flowers winter and spring.