Mitt., J. Linn. Campylium W. S. Sullivant in A. Gray, Man. N. U. States ed. Plants small or medium-sized, green, yellowish green or brownish.
Branch leaves smaller and sometimes narrower than stem leaves.
Dioicous or autoicous. Campylium species occur in mineral-rich wetlands that are mostly permanently wet or moist. Both the leaf costa and the lamina cells are smooth. The outer pseudoparaphyllia are foliose. The seta is long, up to 45 mm, the exostome border is strongly widened where the exostome pattern changes from cross-striolate to papillose, and the endostome cilia are sometimes appendiculate above.