Acanthocereus (Engelm. ex A.Berger) Britton & Rose in Contr. U.S. Natl. Herb. 12: 432. 1909 sec. Korotkova & al. 2017
  • =Peniocereus subg. Pseudoacanthocereus Sánchez-Mej. in Cact. Suc. Mex. 19: 38. 1974 syn. sec. Korotkova & al. 2017


The sister relationship of Peniocereus subg. Pseudoacanthocereus and Acanthocereus has been shown several times with high statistical support from plastid data (Nyffeler 2002; Arias & al. 2005; Korotkova & al. 2017). Based on these results, Acanthocereus is only monophyletic if it also includes Peniocereus subg. Pseudoacanthocereus. Therefore, a new circumscription of Acanthocereus now including the nine erstwhile Peniocereus subgen. Pseudoacanthocereus species was provided by Korotkova & al. (2017).A
A. Arias, S. 2021: Revisions of Acanthocereus, Aporocactus, Astrophytum, Bergerocactus, Cephalocereus, Disocactus, Marshallocereus, Nyctocereus, Pachycereus, Peniocereus, Pereskiopsis, Selenicereus, Stenocereus, Strophocactus – In: Korotkova N. & al., Cactaceae at – a dynamic online species-level taxonomic backbone for the family. – Willdenowia: 251-270

Archived Note

Currently accepted as monotypic with A. tetragonus (L.) Britton & Rose (Hunt 2006), while all other names suggested in this genus are of uncertain application, or were wrongly assigned to Acanthocereus. The molecular phylogenetic study of Arias & al. (2005) showed that Acanthocereus would need to be expanded to include Peniocereus subg. Pseudoacanthocereus, but no new combinations have yet been published.B
B. Hernández-Ledesma, P., Berendsohn, W.G., Borsch, T., von Mering, S., Akhani, H., Arias, S., Castañeda-Noa, I., Eggli, U., Eriksson, R., Flores-Olvera, H., Fuentes-Bazán, S., Kadereit, G., Klak, C., Korotkova, N. & Nyffeler, R. 2015: A taxonomic backbone for the global synthesis of species diversity in the angiosperm order Caryophyllales. – Willdenowia 45(3): 281-383