Stone plant
Stone plant is a genus that consists of 100 species of flowering succulent perennial plants, native to semi-arid regions in the far west of Namibia and South Africa. Most species are clump-forming, a few are shrubby. The leaves are opposite and triangular in section, rarely flattened, the surface more or less velvety. Daisy-like flowers open during the day in summer, are borne singly and usually have yellow, rarely purple or red, petals.