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Scientific Name | Willdenowia purpurea Pillans |
Higher Classification | Monocotyledons |
Family | RESTIONACEAE |
National Status |
Status and Criteria | Endangered B1ab(iii,v)+2ab(iii,v) |
Assessment Date | 2015/12/07 |
Assessor(s) | H.P. Linder & L. von Staden |
Justification | A range-restricted species (EOO 11 km²), known from two locations and declining due to ongoing habitat loss and degradation as well as competition from alien invasive plants. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Lower slopes of the Franschhoek Mountains in the Theewaterskloof Valley between Viljoen's Pass and Franschhoek Pass. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Kogelberg Sandstone Fynbos |
Description | Sandy flats, possibly somewhat damp in winter, at the base of the sandstone slopes, 350-600 m. |
Threats |
| This species has declined due to habitat loss to dam construction and timber plantations at the type locality on Viljoen's Pass. It is also likely to have lost habitat to the construction of the Theewaterskloof Dam, as well as to fruit orchards in the area between Viljoen's Pass and Franschhoek Pass. Near Franschhoek Pass it is threatened by competition from spreading, unmanaged alien invasive plants. |
Population |
A range-restricted and localized habitat specialist.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Willdenowia purpurea Pillans | EN B1ab(iii,v)+2ab(iii,v) | 2017.1 | | Willdenowia purpurea Pillans | VU D2 | Raimondo et al. (2009) | | Willdenowia purpurea Pillans | Rare | Hilton-Taylor (1996) | | Willdenowia purpurea Pillans | Rare | Hall et al. (1980) | |
Bibliography |
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.
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.
Linder, H.P. 2011. The African Restionaceae: an Interactive Key identification and description system. Version 6. http://www.systbot.uzh.ch/Bestimmungsschluessel/Restionaceae_en.html. Downloaded.
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 |
| Linder, H.P. & von Staden, L. 2015. Willdenowia purpurea Pillans. National Assessment: Red List of South African Plants version . Accessed on 2025/05/21 |
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