Eriosyce paucicostata subsp. echinus
Eriosyce paucicostata subsp. echinus, Cact. Fl. Silv. Chile, ed. 2: 232. 2004 sec. Hunt 20161
- ≡Pyrrhocactus echinus in Taxon 12: 33. 1963 syn. sec. Hunt 20062
- ≡Horridocactus echinus, Descr. Cact. Nov. 3: 7. 1963 syn. sec. Hunt 20062
- ≡Neoporteria curvispina var. echinus in Cact. Succ. J. Gr. Brit. 28: 55. 1966 syn. sec. Kew WCVP (2019)3
- ≡Neoporteria paucicostata var. echinus, Cact. Fl. Silvestre Chile: 208. 1989 syn. sec. Kew WCVP (2019)3
- ≡Neoporteria echinus, Cacti Illustr. Dict.: 142. 1991 syn. sec. Hunt 20062
- ≡Eriosyce taltalensis subsp. echinus, Eriosyce (Cactac.) Gen. Revis. Ampl.: 119. 1994 syn. sec. Hunt 20062
- ≡Eriosyce taltalensis var. echinus, Eriosyce (Cactac.) Gen. Revis. Ampl.: 119. 1994 syn. sec. Hunt 20062
- ≡Horridocactus paucicostatus subsp. echinus in Cactology 3: 8. 2012 syn. sec. Kew WCVP (2019)3
- Isotype: Chile, near Antofagasta, Cerro Coloso, F. Ritter FR 537 (SGO)
- Holotype: Chile, near Antofagasta, Cerro Coloso, F. Ritter FR 537 (ZSS)
- =Pyrrhocactus echinus var. minor in Taxon 12: 33. 1963 syn. sec. Kew WCVP (2019)4
- ≡Horridocactus echinus var. minor, Kakteenlex.: 190. 1966 syn. sec. Kew WCVP (2019)4
- ≡Neoporteria curvispina f. minor in Cact. Succ. J. Gr. Brit. 28: 55. 1966 syn. sec. Kew WCVP (2019)4
- ≡Pyrrhocactus floccosus var. minor, Kakteen Südamerika 3: 939. 1980 syn. sec. Kew WCVP (2019)4