Xerophytes are plants that are adapted for arid environments. Common xerophytic features include: succulent tissues that store water and organic acids, photosynthetic stems with reduced surface area, waxy cuticles to limit water loss, sharp spines, reflective hairs, and underground tubers. Xerophytism is an example of evolutionary convergence, in which distinctly dissimilar ancestors give rise to similar descendants through selection for a common set of features.
CACTUS FAMILY (Cactaceae, stem succulents. North, Central and South America)
(Crassulaceae, worldwide distribution, many CAM species)
SPURGE FAMILY (Euphorbiacea, worldwide distribution)
OLEANDER FAMILY (Apocynaceae)
ICE PLANT FAMILY (Aizoaceae. Leaf succulents, mostly native to Africa.)
LILY FAMILY (Liliaceae and relatives, worldwide distribution. Carrion flowers [Stapelia] emit the scent of rotting flesh to attract pollinators.)