Austrocylindropuntia (Backeberg 1938) Etymology: Southern cylindrical opuntias.Place of Origin: Northern Argentina, Bolivia, Ecuador, and Peru.
Brasiliopuntia ((K.Schum.) A.Berger 1926) Monotypic genus, see *Brasiliopuntia brasiliensis*. Etymology: Brazilian Opuntia. Although it may be found in neighboring countries.Place of Origin: Southern edge of Brazil, northern Argentina, Peru, and Bolivia.
Grusonia (H.Robinson 1973) Etymology: Dedicated to Hermann Gruson, (1821-1895) a German engineer based in Magdeburg and cultivator of cacti.
Opuntia (L. 1753) Plants of great ecological and economic importance, frequently used as food for both humans and livestock. They provide shelter for wildlife.