Copiapoa cinerea

Copiapoa de Philippi
	;
Scientific classification
Kingdom:	Plantae;
Division:	Magnoliophyta;
Class:	Magnoliopsida;
Order:	Caryophyllales;
Family:	Cactaceae;
Subfamily:	Cactoideae;
Tribe:	Notocacteae;
Genus:	Copiapoa; Britton & Rose
Species:	C. cinerea;
Binomial name
	Copiapoa cinerea; Philippi (Britton & Rose)

Copiapoa cinerea is also classified as Copiapoa albispina, Copiapoa melanohystrix, Copiapoa columna-alba, and Echinocactus cinereus.

Wikipedia has an article on Copiapoa.