Aztekium

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cacteae
Genus:
Species: A. hintonii – A. ritteri – A. valdezii

Aztekium Boed., Monatsschr. Deutsch. Kakteen-Ges. 1: 52. (1929)

• Type species: Aztekium ritteri (Boed.) Boed. (1829)
  

Note: The above is sensu CACO (2021), POWO (2025) place Aztekium valdezii in synonymy with Aztekium ritteri and Hassler prefers a monotypic genus with just the type accepted.

• Heterotypic
  • × Aztekonia Mottram, Cactician 5: 15. 2014.
    • Formula hybridae: Boed. × Geohintonia Glass & W.A.Fitz Maur.
      

This is an artificial hybrid and out of scope.

• Boedeker, F. 1929. Monatsschr. Deutsch. Kakteen-Ges. 1: 52.

• Hunt, D. 2016. CITES Cactaceae Checklist, ed. 3: 1–174. PDF. Reference page. 
• Korotkova, N., Aquino, D., Arias, S., Eggli, U., Franck, A. , Gómez-Hinostrosa, C., Guerrero, P.C., Hernández, H.M., Kohlbecker, A., Köhler, M., Luther, K., Majure, L.C., Müller, A., Metzing, D., Nyffeler, R., Sánchez, D., Schlumpberger, B. & Berendsohn, W.G. 2021. Cactaceae at Caryophyllales. org–a dynamic online species-level taxonomic backbone for the family. Willdenowia 51(2): 251–270. DOI: 10.3372/wi.51.51208 Reference page. 

• Govaerts, R. et al. 2025. Aztekium in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2025 June 04. Reference page. 
• Korotkova, N. et al. 2021. Aztekium in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2021 Nov 13. Reference page. 
• International Plant Names Index. 2021. Aztekium. Published online. Accessed: Mar 04 2021. Reference page.
• Tropicos.org 2021. Aztekium. Missouri Botanical Garden. Published online. Accessed: 04 Mar 2021. Reference page.
• Hassler, M. 2021. Aztekium. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2021 Mar 04. Reference page. 

For more multimedia, look at Aztekium on Wikimedia Commons.