Plantae > Tracheophyta > Magnoliopsida > Caryophyllales > Cactaceae > Harrisia > Harrisia regelii Harrisia regeliiSynonyms: Cereus regelii (homotypic); Eriocereus martini var. regelii (homotypic); Eriocereus regelii (homotypic); Harrisia pomanensis regelii (homotypic)
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