Zygophyllum pachyacanthum

Plate 1 figs. a–h · 8 separate observations

Zygophyllum pachyacanthum, photographed by Alan Rockefeller — fig. b Alan Rockefeller, CC BY 4.0 / obs. 32447110

Zygophyllum pachyacanthum, photographed by Bob Miller — fig. c Bob Miller, CC BY 4.0 / obs. 15236064

Zygophyllum pachyacanthum, photographed by nmoorhatch — fig. d nmoorhatch, CC BY 4.0 / obs. 61908101

Zygophyllum pachyacanthum, photographed by rockybajada — fig. e rockybajada, CC0 1.0 / obs. 62989301

Zygophyllum pachyacanthum, photographed by Matt Berger — fig. g Matt Berger, CC BY 4.0 / obs. 60198804

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 3 botanical countries

Native distribution of Zygophyllum pachyacanthum, 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.

Region	TDWG code	Continent
Arizona	ARI	NORTHERN AMERICA
California	CAL
Mexico Northwest	MXN

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 6 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.

Fagonia californica subsp. pachyacantha (Rydb.) Wiggins
Fagonia californica var. glutinosa Vail
Fagonia chilensis var. glutinosa (Vail) I.M.Johnst.
Fagonia chilensis var. pachyacantha (Rydb.) I.M.Johnst.
Fagonia pachyacantha Rydb.
Fagonia viscosa Rydb.

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.
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.