Densely leafy, erect, willowy shrub to 60 cm. Leaves ascending, elliptic and concave, imbricate, shortly hairy beneath. Flowers axillary, many in terminal spikes, white to pink, petals fused for up to half their length, styles free, shorter than petal tube.
Usually 40-60 cm high, moderately branched. Branchlets villous. Leaves mostly about 8 mm long, erect-spreading, obovate or ovate, acute, villous beneath, flat or slightly concave and glabrous above, often becoming quite glabrous, 3-veined. Flowers in the axils of reduced leaves, crowded in rotund or elliptic inflorescences 1.5-2.5 cm long. Bracteoles about 3 mm long, lanceolate, navicular, pubescent on the upper half of the dorsal face, ciliate. Calyx-tube obconic, adhering to the ovary throughout: calyx-lobes closely clasping the base of the corolla, about 3 mm long, ovate or lanceolate, minutely pubescent on the outer face, ciliate. Corolla about 1.5 cm long, glabrous: petals connate (often lightly) 1/2 or less of their length in a cylindric tube; lamina ovate, obtuse or subacute, cream-coloured, with a cuneate-oblong basal claw. Stamens inserted at the mouth of the tube: anthers about 1-25 mm long, sagittate, glabrous. Ovary inferior, globose, villous, bilocular, with 8-12 ovules in each chamber: styles free, reaching to the middle of the tube; stigmas globose.