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Pilosocereus Byles & G.D.Rowley in Cact. Succ. J. Gr. Brit. 19: 66. 1957 sec. Franck 2021


Revised by Alan R. Franck


Key literature: Monograph by Zappi (1994); floristic treatments by Taylor & Zappi (2004), Franck & al. (2019).
Phylogenetics: Calvente & al. (2017) revealed a paraphyletic Pilosocereus. Recently, Lavor & al. (2020) proposed the new genus Xiquexique to accommodate species of Pilosocereus subgen. Gounellea.A

Taxon standing

Category B. The genus is monophyletic based on phylogenetic studies that support the clade based on a sufficiently dense or even complete sampling, or support a monotypic genus as a distinct lineage, but do not provide a new taxonomic treatment at the species level. In many cases, older classical taxonomic synopses or a monographic treatment exist for these genera providing a reliable assessment of the species included.


A. Köhler, M. 2021: Revisions of Airampoa, Brasiliopuntia, Opuntia, Salmonopuntia, Tacinga. – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51: 251-270