Perennial, succulent herb, decumbent branches, slightly woody, rooting at nodes, 0.1-0.2 m high. Leaves sessile, lanceolate, elliptic to broadly obovate, 6-20 x 2-4 mm, subulate to obtuse, glabrous or hairy, fleshy, green to brown. Inflorescence a thyrse with few-flowered cymules or solitary flowers. Calyx fleshy. Corolla cup-shaped, scarcely fused at base, white tinged red; lobes elliptic oblong, 2.5-4.0 mm long, acute or obtuse, recurved at apex. Flowering time Sept.-May.
Perennial, with herbaceous or brittle, ± translucent, decumbent branches, 0.05-0.2 m long. Leaves mostly sessile, lanceolate to elliptic or obovate, dorsiventrally flattened to terete, 6-20 x 2-4 mm. Flowers usually one per leaf axil near branch tips, cup-shaped, petals 2.5-4 mm long, white, tinged red, pedicels elongating in fruit.
Weak, sprawling perennial with herbaceous stems to 40 cm, often rooting at nodes. Leaves opposite, obovate to ellipsoid. Flowers 1-few in upper axils, cup-shaped, white tinged red, petals 2.5-4.0 mm long.