ruthbancroftgarden:

Crassula ausensis ssp. titanopsis

Crassula is a very large genus in the Stonecrop Family (Crassulaceae), and Crassula ausensis ssp. titanopsis, pictured here, is a tiny species from the lower Orange River, which forms the border between Namibia and South Africa. It is notable for the very rough crystalline texture of the leaves. Even with the flowers, this plant is only about 3 cm tall.

-Brian