Stenocactus

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cacteae
Genus:
Accepted Species: S. boedekerianus – S. coptonogonus – S. crispatus – S. multicostatus – S. obvallatus – S. ochoterenianus – S. phyllacanthus – S. sulphureus – S. vaupelianus
Disputed Species: S. anfractuosus – S. arrigens – S. dichroacanthus – S. heteracanthus – S. jarmilae – S. kaplanii – S. lamellosus – S. lancifer – S. magnificus – S. pentacanthus – S. tetraxiphus – S. wippermannii
Nothospecies: S. × irregularis

Stenocactus (K.Schum.) A.Berger, Kakteen (Berger) 346, 244. (1929)

• Type species: Stenocactus coptonogonus A.Berger, Kakteen (Berger) 346. (1929)

• Homotypic
  • Echinocactus subg. Stenocactus K.Schum., Gesamtbeschr. Kakt.: 292. (1897–1899)
  • Stenocactus (K.Schum.) A.W.Hill, Index Kew. Suppl. 8: 228. (1933) nom. illeg.
• Heterotypic
  • Efossus Orcutt, Cactography: 5 (1926), nom. superfl. p.p. see also Echinocactus Link & Otto, Verh. Vereins Beförd. Gartenbaues Königl. Preuss. Staaten 3: 420. (1827)
    

Note: Most of the disputed species are found in the synonymy of Stenocactus crispatus (DC.) A.Berger, Kakteen: 346 (1929) as accepted by POWO (2025), but not CACO (2025).

• Berger, A., 1929. Kakteen (Berger) 346, 244.

• 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. 
• Doweld, A.B. 2001. Stenocactus: Lectotypus und Autor. Kakteen und andere Sukkulenten 52(5): 127–132. Reference page. 

• Govaerts, R. et al. 2025. Stenocactus in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2025 June 27. Reference page. 
• International Plant Names Index. 2021. Stenocactus. Published online. Accessed: Mar 27 2021. Reference page.
• Korotkova, N. et al. 2025. Stenocactus in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2025 June 24. Reference page. 
• Tropicos.org 2021. Stenocactus. Missouri Botanical Garden. Published online. Accessed: 27 Mar 2021. Reference page.
• Hassler, M. 2021. Stenocactus. 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 27. Reference page. 

For more multimedia, look at Stenocactus on Wikimedia Commons.