Siccobaccatus

Based on a phylogenetic study published in 2023, Siccobaccatus was found to be separated from the rest of Micranthocereus, where it had been placed as a subgenus. It was closest to the genus Coleocephalocereus, and the authors suggested that Siccobaccatus should be treated as a subgenus of Coleocephalocereus. The relevant part of their cladogram is shown below:^[2]

A 2025 phylogenetic study did not include any Siccobaccatus species, but on the basis of stem anatomy recommended that Siccobaccatus should be kept as a separate genus from Coleocephalocereus.^[3]

As of January 2026^[update], Plants of the World Online accepted two species:^[1]

Photo	Species	Distribution
	Siccobaccatus estevesii (Buining & Brederoo) P.J.Braun & Esteves	Tocantins & Minas Gerais
	Siccobaccatus dolichospermaticus (Buining & Brederoo) P.J.Braun & Esteves	Bahia & Minas Gerais