A much-branched, short-lived, perennial, subshrubby herb. Leaves small, sessile, entire. Flowers small, subsessile in bracteate clusters at the tips of the branchlets. Sepals obovate, subequal, imbricate. Corolla-tube campanulate; lobes ovate, imbricate, spreading. Stamens and styles exserted; filaments filiform. Ovary 2-locular, 4-ovuled. Styles 2, distinct to the base; stigmas large, capitate. Capsule 2–4-valved, usually one-seeded. Seed glabrous and shining, dark brown.
Flowers small, subsessile, aggregaged in bracteate clusters at the ends of the branchlets.
Corolla 5-lobed; tube campanulate; lobes ovate, imbricate in bud, spreading.
Styles 2, exserted, distinct from the base; stigmas large, capitate.
A much-branched, small, short-lived, perennial, subshrub-like herb.
Stamens exserted; filaments filiform, glabrous, anthers oblong.
Sepals 5, obovate, subequal, imbricate, coriaceous.
Capsule 2–4-valved, usually single-seeded.
Seed glabrous and shining, dark brown.
Leaves small, entire, sessile.
Ovary 2-locular, 4-ovuled.