Decumbent, often adventitiously rooting, ± reddish annual, with branches 10-40 mm tall. Leaves petiolate, obovate, dorsiventrally flattened and slightly convex above, 1-2 x 1-2 mm, finely papillate (at least when young). Flowers in small, axillary clusters, on short pedicels, ± cup-shaped, petals 1.5-2 mm long, white.