Ovary uniovulate, pyriform, densely pilose above; style slender, stigma single, capitate.
Capsule not compressed, the firm pilose apex flat, the hyaline wall glabrous and ruptured by the developing seed.
Perianth segments 5, 3-nerved, more or less long-aristate.
Stamens 5, without intermediate pseudostaminodes; anthers bilocular.
Dwarf shrub with entire opposite leaves and branches.
Inflorescences capitate, almost sessile above the uppermost pair of leaves, white from the pilose hairs of the bracteoles, tepals and sterile flowers; partial inflorescences bibracteolate, of 1–2 sterile and 1–2 fertile flowers.