Erect shrub, more or less glabrous; sap clear. Leaves in whorls of 3 or opposite; petiole short. Inflorescences terminal thyrse. Flowers pedicellate; sepals narrowly triangular to narrowly ovate, with fleshy basal glands inside; corolla usually pink, occasionally white, yellow or red, tube cylindric, hairy inside, lobes broad, spreading, imbricate in bud; coralline corona present at tube mouth; stamens included, inserted near middle of tube on short filaments, hairy; anther narrowly triangular, fertile at sagittate base, adherent to style head, with hairy apical appendages; disc absent; carpels free, ovules many per carpel, style head subglobose, with basal ring. Fruit a woody follicle, fusiform, laterally dehiscent; seeds numerous, with an apical coma.
One species native to Asia and the Mediterranean.