Dawsonia is a genus of  mosses. Dawsonia, along with other members of the order Polytrichales, are taller than most mosses and have thicker leaves. Their sporophytes have conducting systems analogous to those of vascular plants. Dawsonia superba is found in New Zealand, Australia and New Guinea. Dawsonia longifolia is found in the Philippines, Indonesia, Malaysia, and Australia. Dawsonia superba and Dawsonia longifolia may be the same species.