Sedum praealtum, Siempre Viva, Mexican Bush Sedum
Pretty common 'pass-along' plant in gardens around here, but still a very useful addition to a low water garden. This species has bright green leaves the very closely related and almost identical S. dendroideum has leaves of a slightly different shape with tinges of red. Easily increased from any piece accidentally or intentionally broken off and stuck back into the ground. In a sunny spot, where happy, this plant can cover itself with these yellow blooms in spring.