A family of ca. 20 genera and 500 species mainly from the more arid regions of the southern hemisphere, especially Africa, South America, and Australia, fewer species in Asia, Europe, and North America; ca. 6 genera and 70 species occur naturaly in Austr
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Nyananyo, B. L. (1990). Tribal and generic relationships in the Portulacaceae. Feddes Repertorum 101: 237-241.
Carolin, R. C. (1993). Portulacaceae. (1990+). The Families and Genera of Vascular Plants. 2: 544-555.