Cushion moss grows in dense clumps ranging from a few centimetres to a metre (1 or 2 inches to more than a yard) in diameter and from 1 to 4 inches high. The clumps can absorb and retain water. Clusters of rootlike structures in the terminal phyllid (leaf) clusters fall and root, forming new cushions. Cushion mosses have lance-shaped phyllids with sharp tips and reddish brown capsules (spore cases), seldom seen, which ripen in autumn. $9.50/sq. ft.