Perennial herbs or subshrubs; stems simple or sparsely branched. Leaves sessile or subsessile, ovate-oblong to narrowly lanceolate, mucronate, with margin revolute; stipule sheath produced into a 3-15-fimbriate lobe. Flowers heterostylous; in terminal, many-flowered cymes or corymbs or capitate clusters; bracteate. Calyx 4-lobed to halfway or more, lobes lanceolate to ovate-triangular, keeled. Corolla 4-lobed, white; lobes minutely papillose on inner face; tube densely bearded within. Stamens arising at sinuses of corolla; filaments glabrous; anthers dorsifixed. Disc farinose or very shortly pubescent. Ovary 2-locular, with many ovules in each locule on shortly stalked, peltate placentas; style usually undivided; stigma lobes subglobose or ovoid. Fruit a shortly pointed capsule, with loculicidal and septicidal dehiscence. Seeds many, angular. x = 9 (polyploidy).
Species +/- 6, tropical Africa, Comoro Islands; 3 in sthn Afr., Northern Province, North-West, Gauteng, Mpumalanga, Swaziland, KwaZulu-Natal.