Two species of dwarf evergreen shrubs, twigs 4-angled, corky, and finely warted. Leaves opposite, densely arranged, small, entire or finely serrate. Flowers inconspicuous, green or reddish. Fruit is a leathery capsule. Native to North America. The genus is sometimes given as Pachistima
Paxistima: from the Greek pachy, thick, and stimga.