Maihuenia

Cladus: Eukaryota
Regnum: Plantae
Divisio: Magnoliophyta
Classis: Magnoliopsida
Ordo: Caryophyllales
Familia: Cactaceae
Subfamilia: Maihuenioideae
Genus: Maihuenia
Species: M. patagonica - M. poeppigii

Maihuenia is a genus of cactus (family Cactaceae) and the sole genus of the subfamily Maihuenioideae, which is the smallest subfamily of the Cactaceae. The genus comprises 2 cushion-forming, mucilaginous species. They are found at high elevation habitats of Andean Argentina and Chile.