Pubescent herbs, subshrubs or shrubs; stems erect, branched, lacking rhi-zomes. Leaves opposite, petiolate, lanceolate, ovate or elliptic, the apex often acuminate, the margin toothed. Inflorescences cymose, axillary, of few to many flowers; peduncles elongated or lacking. Flowers with the calyx lobes 5, varying from short and ovate to long and linear or lanceolate; corolla red, orange to yellow, tubular, broader at the middle from a narrow base and throat, the limb 5-lobed, each nearly equal and rounded; stamens 4, adnate to the base of the corolla tube, not exserted; disc annular; ovary semi-inferior, the apex conic, the stigma stomatomorphic. Fruit a dry, ovoid or ellipsoid capsule, dehiscing loculicidally into 2 valves; seeds small and numerous. Chromosomes n = 11 (Wiehler, 1975).
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