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Scientific Name | Stapelia rubiginosa Nel |
Higher Classification | Dicotyledons |
Family | APOCYNACEAE |
National Status |
Status and Criteria | Endangered B1ab(iii,v)+2ab(iii,v) |
Assessment Date | 2015/06/10 |
Assessor(s) | N.A. Helme, D. Raimondo & L. von Staden |
Justification | EOO 308 km², plants at four known locations continue to decline due to ongoing habitat degradation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Richtersveld. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Stinkfonteinberge Eastern Apron Shrubland, Kosiesberg Succulent Shrubland, Central Richtersveld Mountain Shrubland, Western Gariep Hills Desert |
Description | Sheltered inside shrubs on stony, typically north-facing, slopes. |
Threats |
| Stapelia rubiginosa is dependent on shelter provided by nurse-shrubs, but across large parts of the Richtersveld, severe overgrazing has significantly reduced shrub cover, and this species has already disappeared from areas such as Cornellskop and Remhoogte, where it is known from historical records (Bruyns 2005). This species occurs predominantly on lower slopes, where grazing pressure is very high, especially close to settlements. |
Population |
At least two known subpopulations of Stapelia rubiginosa have already disappeared as a result of habitat degradation. This species is rare, and seldom collected, but known records are in areas also under severe grazing pressure, and decline is therefore likely to continue.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Stapelia rubiginosa Nel | EN B1ab(iii,v)+2ab(iii,v) | 2015.1 | | Stapelia rubiginosa Nel | VU D2 | Raimondo et al. (2009) | | Stapelia rubiginosa Nel | Rare/Vulnerable | Hilton-Taylor (1996) | | Stapelia rubiginosa Nel | Rare | Hall et al. (1980) | |
Bibliography |
Bruyns, P.V. 2005. Stapeliads of southern Africa and Madagascar. (Vol. 2, pp. 331-606). Umdaus Press, Pretoria.
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Leach, L.C. 1985. A Revision of Stapelia L. (Asclepiadaceae). In: Excelsa Taxonomic Series 3 (pp. 1-157), The Aloe, Cactus and Succulent Society of Zimbabwe, Harare.
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., Raimondo, D. & von Staden, L. 2015. Stapelia rubiginosa Nel. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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