Subspecies:
Echinopsis maximiliana subsp. maximiliana >
Species:
Echinopsis maximiliana >
Genus:
Echinopsis >
Subfamily:
Cactoideae >
Family:
Cactaceae >
Order:
Caryophyllales >
Class:
Magnoliopsida >
Phylum:
Tracheophyta >
Kingdom:
Plantae >
Unranked:
Biota >