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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Aizoaceae
Subfamilia: Ruschioideae
Tribus: Dorotheantheae
Genus: Cleretum
Species: C. apetalum – C. bellidiforme – C. booysenii – C. bruynsii – C. clavatum – C. herrei – C. hestermalense – C. lyratifolium – C. maughanii – C. papulosum – C. patersonjonesii – C. pinnatifidum – C. rourkei
Source(s) of checklist:

Cleretum N.E.Br., 1925.

Type species: Cleretum papulosum (L. f.) L. Bolus. NT designated by M. Struck et H.-D. Ihlenfeldt, Taxon 34: 522 (1985)


Aethephyllum N.E.Br.
Dorotheanthus Schwantes
Micropterum Schwantes
Pherolobus N.E.Br.
Sineoperculum van Jaarsv.
Stigmatocarpum L.Bolus


Brown, N.E., 1925. Gardeners' Chronicle. London, Ser. 3, 78: 412, in clavi.
Klak, C. & Bruyns, P.V. 2012. Phylogeny of the Dorotheantheae (Aizoaceae), a tribe of succulent annuals. Taxon 61(2): 293–307. DOI: 10.1002/tax.612002 Paywall JSTOR Hybrid open access journal Reference page.


Hassler, M. 2018. Cleretum. 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. 2018. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2018 Jul. 04. Reference page.
International Plant Names Index. 2018. Cleretum. Published online. Accessed: Jul. 04 2018.
Govaerts, R. et al. 2018. Cleretum in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2018 Jul. 04. Reference page. 2018. Cleretum. Missouri Botanical Garden. Published on the internet. Accessed: 2018 Jul. 04.
Farr, E.R. & Zijlstra, G. (eds.) 1996 onwards. Cleretum in Index Nominum Genericorum (Plantarum). Accessed: 2011 Febr 18.
Global Biodiversity Information Facility. 2019. GBIF Backbone Taxonomy. Checklist dataset. Taxon: Cleretum. .

Cleretum is a genus of flowering plants in the family Aizoaceae, native to the Cape Provinces of South Africa.[1]

The genus Cleretum was erected by Nicholas Edward Brown in 1925. He published the name in a key, basing the diagnosis on a herbarium sheet that was discovered to contain parts belonging to plants in different genera and without designating a type. This caused confusion as to whether the genus had been validly published and whether genus names published later were synonyms or not. It was established in 1985 that Cleretum was validly published, and that Micropterum was a later synonym. Cleretum papulosum was designated as the type species.[2] Cleretum is placed in the tribe Dorotheantheae. A study in 2012 concluded that the genera previously separated in the Dorotheantheae did not differ sufficiently to be recognized, and placed them all in Cleretum, now the only genus in the tribe.[3]

As of March 2019, Plants of the World Online accepted the following species:[1]

Cleretum apetalum (L.f.) N.E.Br.
Cleretum bellidiforme (Burm.f.) G.D.Rowley
Cleretum booysenii (L.Bolus) Klak
Cleretum bruynsii Klak
Cleretum clavatum (Haw.) Klak
Cleretum herrei (Schwantes) Ihlenf. & Struck
Cleretum hestermalense (Ihlenf. & Struck) Klak
Cleretum lyratifolium Ihlenf. & Struck
Cleretum maughanii (N.E.Br.) Klak
Cleretum papulosum (L.f.) N.E.Br.
Cleretum patersonjonesii Klak
Cleretum pinnatifidum (L.f.) N.E.Br.
Cleretum rourkei (L.Bolus) Klak


"Cleretum N.E.Br.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-03-26
Struck, M. & Ihlenfeldt, H.-D. (1985), "The Correct Names of the Genera in the Subtribe Dorotheanthinae (Mesembryanthemaceae)", Taxon, 34 (3): 520, doi:10.2307/1221232, JSTOR 1221232
Klak, Cornelia & Bruyns, Peter V. (2012), "Phylogeny of the Dorotheantheae (Aizoaceae), a tribe of succulent annuals", Taxon, 61 (2): 293–307, doi:10.1002/tax.612002, JSTOR 23210522

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