Hamatocactus hamatacanthus var. davisii (Houghton & C.A.Armstr.) W.T.Marshall
, Cactaceae (Marshall & Bock) 145 (1941).
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:117166-2
- Species Name
- Hamatocactus hamatacanthus (Muehlenpf.) F.M.Knuth, Kaktus-ABC [Backeb. & Knuth] 353 (1936).
- Publication
- Cactaceae, with Illustrated Keys of All Tribes, Sub-Tribes and Genera. Pasadena, CA
- Collation
- 145
- Family as entered in IPNI
- Cactaceae