Cleistocactus ritteri

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cereeae
Subtribus: Trichocereinae
Genus: Cleistocactus
Species:

Cleistocactus ritteri Backeb. ex Guiggi, Cactology 5(Suppl. 7): 1. (2020)

• Heterotypic
• Cleistocactus ritteri Backeb. in Kakteen And. Sukk. 10: 11, 163. (1959), nom. inval., syn. sec. Guiggi 2020
• Cephalocleistocactus ritteri (Backeb.) Backeb., Cactaceae 6: 3691. (1962), nom. inval., syn. sec. Guiggi 2020

• Backeberg, C. 2020. Cactology 5(Suppl. 7): 1.

• Lowry, M. 2016. A synopsis of the genus Cleistocactus Lemaire (Cactaceae) Bradleya. Yearbook of the British Cactus and Succulent Society 34: 148-186. ResearchGate 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. 

• Korotkova, N. et al. 2021. Cleistocactus ritteri in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2021 Dec 07. Reference page. 
• Govaerts, R. et al. 2021. Cleistocactus ritteri in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2021 Apr 19. Reference page.  as Cleistocactus viridiflorus
• International Plant Names Index. 2021. Cleistocactus ritteri. Published online. Accessed: Apr 19 2021. Reference page.
• Tropicos.org 2021. Cleistocactus ritteri. Missouri Botanical Garden. Published online. Accessed: 19 Apr 2021. Reference page.
• Hassler, M. 2021. World Plants. Synonymic Checklist and Distribution of the World Flora. . Cleistocactus ritteri. Accessed: 19 Apr 2021.

For more multimedia, look at Cleistocactus ritteri on Wikimedia Commons.