''Cereinae'' is a subtribe of

cacti A cactus (: cacti, cactuses, or less commonly, cactus) is a member of the plant family Cactaceae (), a family of the order Caryophyllales comprising about 127 genera with some 1,750 known species. The word ''cactus'' derives, through Latin, ...

in the tribe

Cereeae Cereeae is a tribe of cacti belonging to the subfamily Cactoideae containing about 50 genera, divided in 2023 among six subtribes. Description Cereeae are tree-like or shrubby, sometimes climbing plants. Their mostly elongated to spherical, rib ...

, subfamily

Cactoideae The Cactoideae are the largest subfamily of the cactus family, Cactaceae, and are widely distributed throughout the Americas. Cactaceae is the 5th most endangered plant or animal family evaluated globally by the International Union for Conservati ...

. It is one of the six subtribes into which the tribe Cereeae was divided in 2023, the others being the monotypic Aylosterinae, Gymnocalyciinae, and Uebelmanniinae, along with

Rebutiinae The Rebutiinae are a subtribe of cactus, cacti belonging to the subfamily Cactoideae, tribe Cereeae. A 2010 classification accepted seven or eight genera, but when Circumscription (taxonomy), circumscribed in this way, the subtribe was not Monoph ...

and

Trichocereinae Trichocereinae is a subtribe of cactus that are particular to South America. There are 28 recognized genera in this subtribe. Description Arborescent to shrubby, Trichocereinae normally form unsegmented, spherical to columnar stems that are usual ...

Genera

14 genera were firmly included in subtribe Cereinae in a 2021 study. This included ''Stephanocereus'', treated as a synonym of ''Arrojadoa'' by

Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ...

. ''

Espostoopsis ''Espostoopsis'' is a monotypic genus of cactus containing the single species ''Espostoopsis dybowskii''. The generic name is formed from Greek ''opsis'' meaning "view", referring to its resemblance to the genus ''Espostoa'', with which it is oft ...

'' was not included in the 2021 study, but was noted to have been placed in Cereinae in many previous studies, including that by Lendel in 2013. ''Serrulatocereus'' was also not included in the 2021 study. It may not be distinct from ''Cereus'' as molecular phylogenetic studies have placed it in that genus, a placement accepted by some sources. A 2023

molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...

study found that ''Stetsonia'', formerly placed in subtribe

, belonged in Cereinae.

References

Plant subtribes Long stubs with short prose {{Cactus-stub