Acaulescent or caulescent, ± succulent perennials, with or without offsets, stems if present, simple or branched. Leaves usually sharp-pointed, margins sinuate-dentate, in rosettes. Racemes terminal or lateral, capitate to long-cylindrical, or inflorescence corymbose. Flowers showy, yellowish or reddish, ± zygomorphic, pedicellate, bracts scarious; segments free or connate below into curved or straight tube, lobes spreading. Stamens 6, hypogynous, included or exserted. Ovary many-seeded. Capsule oblong to sub-globose. Seeds many, often winged. Spp. c. 330, from tropical and S. Africa, Madagascar, Arabia. Adventive Sp. 1.