You selected Coryphantha cornifera var. echinus (Engelm.) L. Benson. This is a synonym for:

Accepted scientific name:
Coryphantha echinus (Engelm.) Britt. & Rose (accepted name) 1 literature reference for Coryphantha echinus (Engelm.) Britt. & Rose
Synonyms:
Coryphantha cornifera var. echinus (Engelm.) L. Benson (synonym) 2 literature references for Coryphantha cornifera var. echinus (Engelm.) L. Benson
Coryphantha pectinata (Engelm.) Britt. & Rose (synonym) 2 literature references for Coryphantha pectinata (Engelm.) Britt. & Rose
Mammillaria echinus Engelm. (synonym) 2 literature references for Mammillaria echinus Engelm.
Infraspecific taxon: Coryphantha echinus (Engelm.) Britt. & Rose
Common names:
Common name Language Country
Biznaga-partida erizo Spanish - Click here to show the literature
 reference
rhinoceros cactus unspecified - Click here to show the literature
 reference
Classification:
Plantae
Phylum Magnoliophyta
Class Magnoliopsida
Order Caryophyllales
Family Cactaceae
Genus Coryphantha
Distribution: North America
Additional data: -
Source database: ITIS, Sep 2009
Latest taxonomic scrutiny: Kartesz J., 15-Mar-2000
Online resource: http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=511473
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:24e1fede-60a7-102d-be47-00304854f810:ac2010