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Scientific Name | Haworthia chloracantha Haw. |
Higher Classification | Monocotyledons |
Family | ASPHODELACEAE |
National Status |
Status and Criteria | Endangered B1ab(iii,iv,v) |
Assessment Date | 2014/03/19 |
Assessor(s) | N.A. Helme, J.H. Vlok, D. Raimondo & L. von Staden |
Justification | A range-restricted species (EOO 1343 km²), known from only a few, small, severely fragmented subpopulations and declining due to ongoing habitat loss and degradation, competition from alien invasive plants and collection for the succulent trade. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Herbertsdale and the Gourits Valley to the Great Brak River. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Mossel Bay Shale Renosterveld, Garden Route Granite Fynbos, Hartenbos Dune Thicket, Gamka Valley Thicket |
Description | Renosterveld-thicket mosaic, in gravely, clay soil on south-facing slopes. |
Threats |
| Haworthia chloracantha is threatened by ongoing habitat loss to road construction, quarrying and coastal development, particularly in the area between Mossel Bay and the Groot Brak River, with many subpopulations known through historical collections now extinct. One subpopulation is also threatened by competition from alien invasive wattles. Easily accessible and published localities are also targeted by succulent collectors. |
Population |
Subpopulations occur on isolated remnants of renosterveld and are typically small and dispersal is limited (J.H. Vlok pers. obs.).
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Haworthia chloracantha Haw. var. chloracantha | Data Deficient (Taxonomically Problematic) | Raimondo et al. (2009) | | Haworthia chloracantha Haw. var. denticulifera (Poelln.) M.B.Bayer | EN B1ab(ii,iii,iv,v) | Raimondo et al. (2009) | | Haworthia chloracantha Haw. var. subglauca Poelln. | EN B1ab(ii,iii,v)+2ab(ii,iii,v) | Raimondo et al. (2009) | |
Bibliography |
Bayer, M.B. 1982. The new Haworthia handbook. National Botanical Gardens of South Africa.
Bayer, M.B. 1999. Haworthia Revisited: A revision of the genus. Umdaus Press, Hatfield.
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity Institute, Pretoria.
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 |
| Helme, N.A., Vlok, J.H., Raimondo, D. & von Staden, L. 2014. Haworthia chloracantha Haw. National Assessment: Red List of South African Plants version . Accessed on 2025/05/22 |
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