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Scientific Name | Stoeberia carpii Friedrich |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Jensenobotrya vanheerdei L.Bolus, Ruschianthemum merenskyanum Dinter |
National Status |
Status and Criteria | Endangered B1ab(iii,v)+2ab(iii,v) |
Assessment Date | 2022/08/08 |
Assessor(s) | P.C.V. Van Wyk, N.A. Helme & D. Raimondo |
Justification | A species restricted to the Sperregebiet region of southern Namibia and the Richtersveld region of South Africa, it has an extent of occurrence (EOO) of 119 km² and an area of occupancy (AOO) of less than 40 km². It is known from three locations and is declining due to climate-linked drought mortality and severe livestock overgrazing in parts of its range. This species therefore qualifies for listing as Endangered under criterion B. As Namibia's population experiences similar drought mortality levels, its regional status is therefore not adjusted. |
Distribution |
Endemism | Not endemic to South Africa |
Provincial distribution | Northern Cape |
Range | This species occurs in Sperrgebiet region of southern Namibia to the lower Gariep Valley in South Africa. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Desert |
Description | It grows amongst rocks on mountains, typically on southern slopes. This species is a large shrub that can grow up to two meters tall and has woody stems. |
Threats |
| The population is declining due to climate change. Its entire range has experienced below-average rainfall since 2012. Drought has caused the loss of one former subpopulation at Lorelei Coal Mine. Predictions of future climate change include further increases in annual average temperature of between 1.4°C and 2.4°C by 2050, which will result in unbearably hot temperatures and ongoing aridification throughout significant portions of the year (Van Wilgen et al. 2017). Within South Africa it has also lost habitat to severe overgrazing by livestock between 2002 and 2014. The subpopulation at Pooitjiespram has been severely impacted by livestock grazing and harvesting for firewood, only a few plants remain. |
Population |
The population is declining due to the impacts of drought, livestock overgrazing and collection of stems for firewood. In Namibia where there is no livestock grazing subpopulations occur on the lower and upper slopes, whilst in South Africa subpopulations occur only on the higher peaks of the southern slopes.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Stoeberia carpii Friedrich | Least Concern | Raimondo et al. (2009) | |
Bibliography |
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.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
Van Wilgen, N.J. and Herbst, M. 2017. Taking stock of parks in a changing world: The SANParks Global Environmental Change Assessment. SANParks, Cape Town.
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Citation |
| Van Wyk, P.C.V., Helme, N.A. & Raimondo, D. 2022. Stoeberia carpii Friedrich. National Assessment: Red List of South African Plants version . Accessed on 2024/12/07 |
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