Small, villose shrubs with broadly elliptic, rugose, crenate, acute, viscid leaves. Flowers pale-violet or purplish, in sessile, congested or laxly borne clusters on trichotomous or monochasial panicle; bracts linear-oblong, as long as the calyx; bracteoles similar to but shorter than bracts. Calyx 5-lobed, lobes ± equal, linear, hairy. Corolla tube ventricose, glabrous outside, limb subequally 5-lobed, lobes obtuse, twisted. Stamens 4, all fertile, included; anthers ovate or oblong, bithecous, basally muticous, connective apiculate or not. Ovary bilocular, hairy in the upper part, each locule 4-6ovuled; style gradually thickened upwards, hairy, stigma linear-lanceolate. Capsule linear-oblong, 6-8 (-12)-seeded. Seeds discoid, hairy or glabrous, on hooked retinacula.