Prostrate to erect perennial succulent shrubs. Lvs opposite, sessile, 3-angled, toothed or denticulate or entire, smooth or papillate; papillae not glittering. Fls solitary or in cymes on lateral branchlets, pedicellate, ebracteate or with leaflike bracts. Sepals 5, ± flat, subequal. Petals numerous, > sepals, free; stamens numerous, often conically collected with the inner staminodes. Placentation parietal. Stigmas (4)-5, lanceolate. Capsule 5-locular; expanding keels diverging; wings 0; locules with lids; placental tubercle present. Seeds ovoid, rough.