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Scientific Name | Haworthiopsis sordida (Haw.) G.D.Rowley |
Higher Classification | Monocotyledons |
Family | ASPHODELACEAE |
National Status |
Status and Criteria | Near Threatened B1ab(iii,v) |
Assessment Date | 2020/11/24 |
Assessor(s) | J.H. Vlok, N.A. Helme, G. Marx, D. Raimondo & L. von Staden |
Justification | Haworthiopsis sordida is a rare, range-restricted species with an extent of occurrence (EOO) of 2925 km². It occurs between 10 and 20 locations and declining due to ongoing habitat degradation. It is listed as Near Threatened under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape |
Range | This species is endemic to South Africa, and is found from Steytlerville to Uitenhage and the Suurberg Mountains north of Kirkwood. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Sundays Arid Thicket, Eastern Gwarrieveld, Baviaans Valley Thicket, Albany Alluvial Vegetation, Sundays Valley Thicket, Southern Karoo Riviere, Willowmore Gwarrieveld, Koedoeskloof Karroid Thicket |
Description | It occurs in rocky karroid slopes. |
Threats |
| Some subpopulations of Haworthiopsis sordida, particularly in the western part of this species' range, occur in areas degraded due to severe overgrazing (J.H. Vlok pers. comm.). |
Population |
A rare and seldom collected species, but may also be overlooked as plants grow sheltered among the base of shrubs. The species occurs as scattered individuals.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Haworthiopsis sordida (Haw.) G.D.Rowley | NT B1ab(iii,v) | 2014.1 | | Haworthia sordida Haw. var. lavranii C.L.Scott | VU B1ab(iii,v) | Raimondo et al. (2009) | | Haworthia sordida Haw. var. sordida | Least Concern | Raimondo et al. (2009) | | Haworthia sordida Haw. var. sordida | Vulnerable | Hilton-Taylor (1996) | |
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.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical 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.
Rowley, G.D. 2013. Generic concepts in the Alooideae. Part 3 - The phylogenetic story. Alsterworthia International Special Issue 10:1-6.
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Citation |
| Vlok, J.H., Helme, N.A., Marx, G., Raimondo, D. & von Staden, L. 2020. Haworthiopsis sordida (Haw.) G.D.Rowley. National Assessment: Red List of South African Plants version . Accessed on 2025/05/12 |
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