Myrtillocactus geometrizans(Mart. ex Pfeiff.) Console

Blue Myrtle-cactus

WFO wfo-0001287034 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Myrtillocactus geometrizans, photographed by Daniel Pineda Vera
fig. a Daniel Pineda Vera, CC BY 4.0 / 2022-05-25 / obs. 200650955
Myrtillocactus geometrizans, photographed by Comisión Estatal de Biodiversidad del Estado de Hidalgo
fig. b Comisión Estatal de Biodiversidad del Estado de Hidalgo, CC BY-SA 4.0 / obs. 199449429
Myrtillocactus geometrizans, photographed by Comisión Estatal de Biodiversidad del Estado de Hidalgo
fig. c Comisión Estatal de Biodiversidad del Estado de Hidalgo, CC BY-SA 4.0 / obs. 185278944
Myrtillocactus geometrizans, photographed by Ulises Emmanuel Martínez Burgos
fig. d Ulises Emmanuel Martínez Burgos, CC BY 4.0 / obs. 185974225
Myrtillocactus geometrizans, photographed by John Leszczynski
fig. e John Leszczynski, CC BY 4.0 / obs. 173366231
Myrtillocactus geometrizans, photographed by José Belem Hernández Díaz
fig. f José Belem Hernández Díaz, CC BY 4.0 / obs. 137302768
Myrtillocactus geometrizans, photographed by Juan Carlos Fonseca Mata
fig. g Juan Carlos Fonseca Mata, CC BY 4.0 / obs. 138995773
Myrtillocactus geometrizans, photographed by Juan Carlos Fonseca Mata
fig. h Juan Carlos Fonseca Mata, CC BY 4.0 / obs. 133018376

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.

Flowering n = 202 observations

Peak flowering in Mar, from 202 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 20 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 aquicaulensis Pfeiff.
  • Cereus arrigens Monv. ex Labour.
  • Cereus garambello Haage ex C.F.Först.
  • Cereus geometrizans Mart. ex Pfeiff.
  • Cereus geometrizans var. pugionifer (Lem.) Salm-Dyck
  • Cereus geometrizans var. pugioniferus (Lem.) Salm-Dyck
  • Cereus geometrizans var. quadrangularispinus Lem. ex Labour.
  • Cereus gladiator Otto & A.Dietr.
  • Cereus gladiator var. geometrizans Monv.
  • Cereus pugionifer Lem.
  • Cereus pugionifer var. quadrangulispinus Lem. ex C.F.Först.
  • Myrtillocactus geometrizans f. cristatus P.V.Heath
  • Myrtillocactus geometrizans f. hintonii W.A.Fitz Maur.
  • Myrtillocactus geometrizans var. grandiareolatus (Bravo) Backeb.
  • Myrtillocactus geometrizans var. pugionifera (Lem.) Console
  • Myrtillocactus grandiareolatus Bravo
  • Myrtillocactus hertrichii Houghton
  • Myrtillocactus pugionifer A.Berger
  • Myrtillocereus geometrizans Frič & Kreuz.
  • Myrtillocereus geometrizans var. pugionifer (K.Schum.) Frič & Kreuz.

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.

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