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Scientific Name | Osteospermum australe B.Nord. |
Higher Classification | Dicotyledons |
Family | ASTERACEAE |
National Status |
Status and Criteria | Endangered B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) |
Assessment Date | 2013/11/27 |
Assessor(s) | L. von Staden |
Justification | A rare, localized species (EOO 156 km²), known from only five locations and declining due to competition from alien invasive plants and habitat loss to development. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Pearly Beach to Cape Agulhas. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Agulhas Limestone Fynbos |
Description | Low limestone ridges in coastal and lowland fynbos. |
Threats |
| This species is threatened by competition from dense, unmanaged infestations of alien invasive plants across its range. The subpopulation at the type locality is now locally extinct due to habitat loss to coastal development, and a second subpopulation nearby is also under threat from a proposed development. Another site where this species has been recorded has been earmarked for a potential power plant development. |
Population |
A localized and apparently rare species that is nowhere abundant (Nordenstam 2004). Subpopulations are small and isolated.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Osteospermum australe B.Nord. | EN B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) | 2014.1 | | Osteospermum australe B.Nord. | Threatened | 2013.1 | | Osteospermum australe B.Nord. | Threatened | Raimondo et al. (2009) | |
Bibliography |
Nordenstam, B. 2004. Two new species of Osteospermum (Compositae - Calenduleae) from southwestern Cape Province, South Africa. Edinburgh Journal of Botany 60(3):259-265.
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 |
| von Staden, L. 2013. Osteospermum australe B.Nord. National Assessment: Red List of South African Plants version . Accessed on 2025/05/21 |
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