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Scientific Name | Oscularia vredenburgensis (L.Bolus) H.E.K.Hartmann |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Lampranthus vredenburgensis L.Bolus |
National Status |
Status and Criteria | Vulnerable A2abc; B1ab(ii,iii,v)+2ab(ii,iii,v) |
Assessment Date | 2005/11/24 |
Assessor(s) | N.A. Helme & D. Raimondo |
Justification | A population reduction of >30% in the past 15 years is estimated based on observed declines in known subpopulations and habitat loss to coastal development (generation length ± 10 years). EOO and AOO<500 km², five locations are known, but there are likely to be a few more in poorly explored areas of the range. Ongoing habitat loss and degradation by coastal development and livestock grazing is causing a continuing decline. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Stompneus Bay to Langebaan. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Saldanha Granite Strandveld |
Description | Granite rocks. |
Threats |
| Habitat loss, Changes in native species dynamics, Pollution (affecting habitat and/or species), Invasive Alien Species (direct effects), Habitat degradation |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Oscularia vredenburgensis (L.Bolus) H.E.K.Hartmann | VU A2abc; B1ab(ii,iii,v)+2ab(ii,iii,v) | Raimondo et al. (2009) | |
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.
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. 2005. Oscularia vredenburgensis (L.Bolus) H.E.K.Hartmann. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09 |
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