Gymnocalycium spegazziniiBritton & Rose

WFO wfo-0000712678 Accepted WFO 2026-06 5 photographs CC0 / CC BY

Plate 1 figs. a–e · 5 separate observations

Gymnocalycium spegazzinii, photographed by Mariana
fig. a Mariana, CC0 1.0 / 2020-01-12 / obs. 192672961
Gymnocalycium spegazzinii, photographed by Nicolas Olejnik
fig. b Nicolas Olejnik, CC BY 4.0 / obs. 51661699
Gymnocalycium spegazzinii, photographed by Nicolas Olejnik
fig. c Nicolas Olejnik, CC BY 4.0 / obs. 51661365
Gymnocalycium spegazzinii, photographed by Nicolas Olejnik
fig. d Nicolas Olejnik, CC BY 4.0 / obs. 51661336
Gymnocalycium spegazzinii, photographed by Nicolas Olejnik
fig. e Nicolas Olejnik, CC BY 4.0 / obs. 51661284

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 2 botanical countries

Regions where Gymnocalycium spegazzinii is native: Argentina Northwest, Bolivia Argentina NorthwestBolivia
Native distribution of Gymnocalycium spegazzinii, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Argentina Northwest AGW SOUTHERN AMERICA
Bolivia BOL

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 15 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Echinocactus loricatus Poselg.
  • Echinocactus loricatus Speg.
  • Gymnocalycium armatum F.Ritter
  • Gymnocalycium cardenasianum F.Ritter
  • Gymnocalycium cardenasianum f. armatum (F.Ritter) H.Till & Amerh.
  • Gymnocalycium cardenasianum subsp. armatum (F.Ritter) V.Gapon & Vikulov
  • Gymnocalycium cardenasianum subsp. pseudoarmatum V.Gapon & Vikulov
  • Gymnocalycium cardenasianum var. pseudocrassispinum Milt
  • Gymnocalycium horizonthalonium Frič ex Kreuz.
  • Gymnocalycium loricatum Speg.
  • Gymnocalycium spegazzinii f. unguispinum Slaba
  • Gymnocalycium spegazzinii subsp. armatum (F.Ritter) Halda & Šorma
  • Gymnocalycium spegazzinii subsp. sarkae Halda & Milt
  • Gymnocalycium spegazzinii var. punillense H.Till & W.Till
  • Gymnocalycium spegazzinii var. recii Milt

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.