Cumulopuntia is a genus of cactus (family Cactaceae). This is a poorly defined genus, with constant change to what species fall under it and whether it should even be a separate genus from Opuntia, which it is often interchanged with. It was defined by Friedrich Ritter in 1980 by redefining multiple species in Tephrocactus and Opuntia. Still more work needs to be done to circumscribe Cumulopuntia as it stands.
Species list , Plants of the World Online accepted the following species: Image Scientific name DistributionCumulopuntia berteroi (Colla) F.RitterC Chile Cumulopuntia chichensis Argentina, Bolivia Cumulopuntia corotilla PeruCumulopuntia dactylifera (Vaupel) E.F.AndersonPeru, Bolivia Cumulopuntia dimorpha Peru.Cumulopuntia echinacea (F.Ritter) F.RitterN Chile Cumulopuntia flexibilispina BoliviaCumulopuntia ignescens (Vaupel) F.RitterPeru, Bolivia, N Chile Cumulopuntia iturbicola Argentina (Jujuy) Cumulopuntia leucophaea Chile, Peru Cumulopuntia mollispina Hoxey, A.Pauca, Quip. & GdaniecPeru Cumulopuntia rossiana Argentina, Bolivia, Peru Cumulopuntia pentlandii NW Argentina, Bolivia, N Chile, Peru Cumulopuntia sphaerica W and S Peru Cumulopuntia subterranea Argentina, Bolivia Cumulopuntia unguispina Peru Cumulopuntia zehnderi Peru
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