Erect or decumbent suffrutex, to 1 m, usually with white latex. Stems green, often suffused with purple or red. Leaves decussate, petiolate; lamina variable, elliptic, obovate or narrowly obovate; apex mucronate. Flowers 4-5 cm, showy, white or pink, with a purple, red, pale yellow or white centre. Follicle 1.2-3.8 × 0.2-0.3 cm, dehiscent on the adaxial side. Seeds 1-2 mm, numerous, grooved on one side.