Echinopsis oxygona(Link) Zucc. ex Pfeiff.

WFO wfo-0000662236 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Echinopsis oxygona, photographed by Facundo Chieffo
fig. a Facundo Chieffo, CC BY 4.0 / 2021-11-06 / obs. 168135322
Echinopsis oxygona, photographed by demianlescano
fig. b demianlescano, CC0 1.0 / obs. 104653817
Echinopsis oxygona, photographed by demianlescano
fig. c demianlescano, CC0 1.0 / obs. 104653721
Echinopsis oxygona, photographed by Noelia
fig. d Noelia, CC BY 4.0 / obs. 167320259
Echinopsis oxygona, photographed by douglaseustonbrown
fig. e douglaseustonbrown, CC BY-SA 4.0 / obs. 66233041
Echinopsis oxygona, photographed by douglaseustonbrown
fig. f douglaseustonbrown, CC BY-SA 4.0 / obs. 34269392
Echinopsis oxygona, photographed by Shaun Swanepoel
fig. g Shaun Swanepoel, CC BY 4.0 / obs. 17651252
Echinopsis oxygona, photographed by Gustavo Puente
fig. h Gustavo Puente, CC0 1.0 / obs. 107603616

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 4 botanical countries

Regions where Echinopsis oxygona is native: Argentina Northeast, Brazil South, Paraguay, Uruguay Argentina NortheastBrazil SouthParaguayUruguay
Native distribution of Echinopsis oxygona, 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 Northeast AGE SOUTHERN AMERICA
Brazil South BZS
Paraguay PAR
Uruguay URU

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 74 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.

  • Cereus decaisneanus (Lem.) Mottet
  • Cereus eyriesii (Turpin) Otto
  • Cereus eyriesii (Turpin) Pfeiff.
  • Cereus eyriesii Pfeiff.
  • Cereus geminatus Otto ex Pfeiff.
  • Cereus jasmineus Pfeiff.
  • Cereus multiplex Pfeiff.
  • Cereus multiplex var. monstrosus Pfeiff.
  • Cereus oxygonus (Link) Otto
  • Cereus schelhasii Pfeiff.
  • Cereus turbinatus Pfeiff.
  • Echinocactus boutillieri Parm. ex Pfeiff.
  • Echinocactus decaisneanus (Lem.) Steud.
  • Echinocactus decaisnei (Lem.) Steud.
  • Echinocactus eyriesii Turpin
  • Echinocactus eyriesii var. glaucus Lindl.
  • Echinocactus gemmatus Otto
  • Echinocactus multiplex Hort. ex Pfeiff.
  • Echinocactus multiplex Otto
  • Echinocactus octogonus G.Don
  • Echinocactus oxygonus Link
  • Echinocactus sulcatus Pfeiff.
  • Echinocactus turbinatus Pfeiff.
  • Echinonyctanthus decaisneanus Lem.

and 50 more.

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.