Sedum adolphi
Appearance
Sedum nussbaumerianum, is native to Mexico. Also called Stonecrop, it is a member of the Crassulaceae family and the subfamily Sedoideae. (Tribe: Sedeae, Genus: Sedum) They grow up to 20cm, and can bloom with small star shaped white flowers.
They are easy to grow and prefer a warmer climate. They are rated for USDA zone 3.
References
http://worldofsucculents.com/sedum-nussbaumerianum-nussbaumers-sedum-coppertone-stonecrop/