An order of pleurocarpous mosses in which the primary stems are prostrate and creeping but the secondary stems may be erect; branching is irregular to pinnate or dendroid. The leaves are usually ovoid to lanceolate, may be nerved or not, and have pointed tips. Capsules are round to cylindrical; the peristome is double. Genera include Climacium, Fontinalis, and Neckera. They are found in a variety of habitats.
Subjects: Plant Sciences and Forestry.