Melocactus bellavistensis subsp. onychacanthus N.P.Taylor
, Bradleya 9: 66 (1991).- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:1141590-2
- Publication
- Bradleya; Yearbook of the British Cactus and Succulent Society. Botley
- Collation
- 9: 66
- Family as entered in IPNI
- Cactaceae