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Scientific Name | Quaqua framesii (Pillans) Bruyns |
Higher Classification | Dicotyledons |
Family | APOCYNACEAE |
Synonyms | Caralluma framesii Pillans |
National Status |
Status and Criteria | Vulnerable B1ab(iii)+2ab(iii) |
Assessment Date | 2010/09/08 |
Assessor(s) | N.A. Helme, D. Raimondo & L. von Staden |
Justification | EOO 44 km², AOO less than 44 km², six known locations. Habitat loss to sporadic cash crop cultivation is causing a continuing decline in the southern part of this species' range. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Southern Knersvlakte, between Nuwerus, Vredendal and Vanrhynsdorp. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Namaqualand Spinescent Grassland, Knersvlakte Dolomite Vygieveld |
Description | Among short shrubs in red sands and stony ground. |
Threats |
| Sporadic habitat loss to cash crop cultivation of Namaqualand Spinescent Grassland is causing a decline in the southern parts of this species' range, and subpopulations on the outskirts of Vredendal are threatened by ongoing habitat loss to urban expansion. Northern subpopulations occurring in more stony Knersvlakte Quartz Vygieveld are not threatened. |
Population |
One recently observed subpopulation had only about six plants. The general abundance of this species at other localities is however not known, but it has been described in the literature as the most localized member of the genus (Bruyns 1999).
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Quaqua framesii (Pillans) Bruyns | EN B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) | Raimondo et al. (2009) | | Quaqua framesii (Pillans) Bruyns | Rare | Hilton-Taylor (1996) | |
Bibliography |
Bruyns, P.V. 1999. The systematic position of Quaqua (Apocynaceae, Asclepiadpoideae) with a critical revision of the species. Botanische Jahrbücher für Systematik 121(3):311-402.
Bruyns, P.V. 2005. Stapeliads of southern Africa and Madagascar. (Vol. 1, pp. 1-330). Umdaus Press, Pretoria.
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.
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Citation |
| Helme, N.A., Raimondo, D. & von Staden, L. 2010. Quaqua framesii (Pillans) Bruyns. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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