Any low succulent plant of the genus Sedum, esp. Sedum acre, which is common on bare rocks in Europe, and is spreading in parts of America. See Orpine.

Sedum acre, a ground-covering succulent herb with trailing stems that blooms with golden yellow flowers. It is also called Small Houseleek, Gold Moss, Golden Carpet, Wall Pepper and Biting Stonecrop.

any of various northern temperate plants of the genus Sedum having fleshy leaves and red or yellow or white flowers

A sort of tree.