Dudleya brittonii
Dudleya brittonii ((DUD-lee-yuh brit-TON-ee-eye), common name Chalk Dudleya, is a succulent plant in the Crassulaceae

Crassulaceae

Crassulaceae, or the orpine family, are a family of dicotyledons. They store water in their succulent leaves. They are found worldwide, but mostly occur in the Northern Hemisphere and southern Africa, typically in dry and/or cold areas where water may be scarce...

 family. It is found in Baja California. Leaves grow in a basal rosette and are covered with a dusty, chalky, mealy white epicuticular “wax”. The wax in its mealy state on the leaves is attracted to water and coats drops on the leaves and prevents their evaporation. The wax has the highest measured ultraviolet reflectivity of any plant. Dudleya

Dudleya

Dudleya is a genus of succulent perennials, consisting of about 45 species in southwest North America.Many plants in the Dudleya genus were formerly classified as Echeveria....

 brittonii is similar in appearance to Dudleya pulverulenta

Dudleya pulverulenta

Dudleya pulverulenta is a succulent plant known by the common names chalk lettuce and chalk liveforever.-Distribution:This dudleya is native to the southwestern United States and northern Mexico, where it is found in steep open rocky areas in coastal and inland mountains and desert foothills, such...

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