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Scientific Name | Haworthia cooperi Baker |
Higher Classification | Monocotyledons |
Family | ASPHODELACEAE |
National Status |
Status and Criteria | Data Deficient - Taxonomically Problematic |
Assessment Date | 2014/03/19 |
Assessor(s) | L. von Staden, R.R. Klopper & J.C. Manning |
Justification | A variable species that is difficult to distinguish from other Haworthia species, particularly H. cymbiformis and H. decipiens. Until taxonomically resolved, the risk of extinction of H. cooperi cannot be assessed. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape |
Habitat and Ecology |
Major system | Terrestrial |
Population |
Population trend | Unknown |
Notes |
| Haworthia has been plagued with an overprolification of names, recognising variation over similarity, and causing much confusion (Bayer and Manning 2012). The genus needs to be revised using population-level molecular techniques in order for species concepts to be resolved (J.C. Manning pers. comm. 2014). |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Haworthia cooperi Baker | Data Deficient (Taxonomically Problematic) | 2014.1 | | Haworthia cooperi Baker var. pilifera (Baker) M.B.Bayer | Least Concern | Raimondo et al. (2009) | | Haworthia cooperi Baker var. gordoniana (Poelln.) M.B.Bayer | Least Concern | Raimondo et al. (2009) | | Haworthia leightonii G.G.Sm. var. davidii Breuer | Least Concern | Raimondo et al. (2009) | | Haworthia cooperi Baker var. venusta (C.L.Scott) M.B.Bayer | CR B1ab(iii,v)+2ab(iii,v) | Raimondo et al. (2009) | | Haworthia cooperi Baker var. truncata (H.Jacobsen) M.B.Bayer | Least Concern | Raimondo et al. (2009) | | Haworthia cooperi Baker var. viridis (M.B.Bayer) M.B.Bayer | Least Concern | Raimondo et al. (2009) | | Haworthia cooperi Baker var. doldii M.B.Bayer | Least Concern | Raimondo et al. (2009) | | Haworthia cooperi Baker var. dielsiana (Poelln.) M.B.Bayer | Least Concern | Raimondo et al. (2009) | | Haworthia leightonii G.G.Sm. var. leightonii | Least Concern | Raimondo et al. (2009) | | Haworthia cooperi Baker var. tenera (Poelln.) M.B.Bayer | Least Concern | Raimondo et al. (2009) | | Haworthia azurea M.Hayashi | Least Concern | Raimondo et al. (2009) | | Haworthia cooperi Baker var. gracilis (Poelln.) M.B.Bayer | Least Concern | Raimondo et al. (2009) | | Haworthia cooperi Baker var. picturata (M.B.Bayer) M.B.Bayer | Least Concern | Raimondo et al. (2009) | | Haworthia cooperi Baker var. isabellae (Poelln.) M.B.Bayer | Least Concern | Raimondo et al. (2009) | | Haworthia cooperi Baker var. cooperi | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Bayer, M.B. 1999. Haworthia Revisited: A revision of the genus. Umdaus Press, Hatfield.
Bayer, M.B. and Manning, J.C. 2012 (Updated online 2013). The Haworthia nomenclator: A list of accepted species with some guidelines for infraspecific names. Haworthia Update 7(4):30-40.
Manning, J.C., Boatwright, J.S., Daru, B.H., Maurin, O. and Van der Bank, M. 2014. A molecular phylogeny and generic classification of Asphodelaceae subfamily Alooideae: A final resolution of the prickly issue of polyphyly in the Alooids? Systematic Botany 39(1):55-74.
Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.
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Citation |
| von Staden, L., Klopper, R.R. & Manning, J.C. 2014. Haworthia cooperi Baker. National Assessment: Red List of South African Plants version . Accessed on 2025/05/23 |
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