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Scientific Name | Sebaea rara Wolley-Dod |
Higher Classification | Dicotyledons |
Family | GENTIANACEAE |
National Status |
Status and Criteria | Vulnerable B1ab(i,ii,iii,iv,v) |
Assessment Date | 2018/05/23 |
Assessor(s) | L. von Staden |
Justification | Sebaea rara is a very rare species, known from less than 10 locations, and probably locally extinct on the Cape Flats. It continues to decline due to ongoing habitat loss and degradation throughout its range, and is therefore listed as Vulnerable under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species is endemic to South Africa, and is found from the Cape Flats to Albertinia. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Albertinia Sand Fynbos, Hangklip Sand Fynbos, Cape Flats Sand Fynbos, Atlantis Sand Fynbos, Swellendam Silcrete Fynbos |
Description | It occurs in damp sandy flats. |
Threats |
| Sebaea rara is threatened by ongoing habitat loss and degradation as a result of urban expansion, which may have already caused the local extinction of this species on the Cape Flats, as well as crop cultivation and competition from alien invasive plants. |
Population |
It is an extremely rare and poorly known species. It has been recorded at a few, scattered localities on the Western Cape coastal lowlands, and was last seen in 1977. Plants are small annuals, and may be overlooked. The current population trend is not known, but it is likely to be declining due to extensive, ongoing habitat loss throughout its range. Field surveys are needed to relocate this species in the wild.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Sebaea rara Wolley-Dod | VU B1ab(i,ii,iii,iv,v) | 2020.1 | | Sebaea rara Wolley-Dod | NT B1ab(ii,iii,iv,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.
Hill, A.W. and Prain, D. 1909. Gentianeae. In: W.T. Thiselton-Dyer (ed). Flora Capensis IV Section I (Vacciniaceae to Gentianeae):1056-1121. Lovell Reeve & Co., Ltd., London.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity Institute, Pretoria.
Marais, W. and Verdoorn, I.C. 1963. Gentianaceae. In: R.A. Dyer, L.E. Codd and H.B. Rycroft (eds). Flora of Southern Africa 26 (Myrsinaceae-Apocynaceae):171-243. Botanical Research 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 |
| von Staden, L. 2018. Sebaea rara Wolley-Dod. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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