Succulent subshrubs or shrubs. Leaves opposite and decussate or whorled, sometimes subrosulate, fleshy, flat to terete, usually entire. Inflorescences terminal on a long peduncle, cymose (in ours). Flowers 5-merous, showy, pendulous (in ours). Calyx shorter than corolla tube. Corolla gamopetalous; tube ± cylindric, 5-angled. Stamens 10. Carpels 5, free.