Genus native range
Genus Peruskia has a presence in South America, North America and the Caribbean Basin. North American occurrences are limited to southern Mexico clearly within the tropics; although there are vouchered specimens in southern Florida for Peruskia aculeata, some impute these occurrences to the result of introductions. Genus occurrences are widespread in the tropics of Mesoamerica and South America, as well as throughout the Caribbean Islands. Some sources cite a restriction of the genus to the tropics; however, some species native ranges in Brazil and Argentina are clearly outside the Southern Hemisphere tropics.
- C.Michael Hogan. 2011. Cactus. Topic ed. Arthur Dawson. Ed.-in-chief Cutler J.Cleveland. Encyclopedia of Earth. National Council for Science and the Environment. Washington DC http://www.eoearth.org/article/Cactus?topic=49480
- Beat Ernst Leuenberger. 2007. Pereskia, Maihuenia and Blossfeldia Taxonomic History, Updates and Notes. Haseltonia 14: 54-93