Plate 1 figs. a–h · 5 observations
This species has been photographed under an open licence only 5 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.
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.
Also published as 7 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.
- Brittonrosea arrigens (Link ex A.Dietr.) Speg.
- Echinocactus arrigens Link ex A.Dietr.
- Echinofossulocactus arrigens (Link ex A.Dietr.) Britton & Rose
- Echinofossulocactus crispatus f. arrigens (Link ex A.Dietr.) P.V.Heath
- Echinofossulocactus obvallatus var. arrigens (Link ex A.Dietr.) J.Meyrán
- Efossus arrigens (Link ex A.Dietr.) Orcutt
- Stenocactus arrigens (Link ex A.Dietr.) A.Berger ex A.W.Hill
Sourcesevery claim on this page
- World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
- iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
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. It has no native range either: Kew's checklist does not cover this taxon.