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Scientific Name | Duvalia immaculata (C.A.Lückh.) Bayer ex L.C.Leach |
Higher Classification | Dicotyledons |
Family | APOCYNACEAE |
Synonyms | Duvalia maculata N.E.Br. var. immaculata C.A.Lückh. |
National Status |
Status and Criteria | Endangered B1ab(ii,iii,iv,v) |
Assessment Date | 2007/05/02 |
Assessor(s) | N.A. Helme & D. Raimondo |
Justification | EOO <1400 km², three to five known locations continue to decline due to habitat loss to coastal development, crop cultivation, invasive alien plants and quarrying. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Cape Infanta to Klein Brak River near Mossel Bay. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Eastern Ruens Shale Renosterveld, Ruens Silcrete Renosterveld, Hartenbos Dune Thicket, Gamka Valley Thicket |
Description | Arid fynbos-renosterveld ecotone vegetation, on shale and limestone. |
Threats |
| Coastal development: around Infanta and at Klein Brak to Groot Brak.
Agriculture is a threat due to wheat farming around Infanta and Gourits River.
Alien species are a severe and ongoing threat at all localities.
Stone quarrying from Klein Brak to Groot Brak is a threat. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Duvalia immaculata (C.A.Lückh.) Bayer ex L.C.Leach | EN B1ab(ii,iii,iv,v) | Raimondo et al. (2009) | |
Bibliography |
Bruyns, P.V. 2005. Stapeliads of southern Africa and Madagascar. (Vol. 1, pp. 1-330). Umdaus Press, Pretoria.
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.
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. 2007. Duvalia immaculata (C.A.Lückh.) Bayer ex L.C.Leach. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13 |
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