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Scientific Name | Diosma haelkraalensis I.Williams |
Higher Classification | Dicotyledons |
Family | RUTACEAE |
National Status |
Status and Criteria | Endangered B1ab(ii,iii,iv,v) |
Assessment Date | 2012/07/27 |
Assessor(s) | T. Trinder-Smith, D. Raimondo & V. Zikishe |
Justification | EOO 1110 km², three remaining locations continue to decline due to competition from alien invasive plants. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Pearly Beach to Hagelkraal. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Overberg Sandstone Fynbos, De Hoop Limestone Fynbos, Agulhas Limestone Fynbos, Agulhas Sand Fynbos |
Description | Crevices on limestone outcrops. |
Threats |
| This highly range-restricted species is currently threatened by competition from unmanaged alien invasive plants. One location has been earmarked as a possible site for the development of a nuclear power plant. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Diosma haelkraalensis I.Williams | EN B1ab(ii,iii,iv,v) | Raimondo et al. (2009) | | Diosma haelkraalensis I.Williams | VU D2 | Victor (2002) | | Diosma haelkraalensis I.Williams | Rare | Hilton-Taylor (1996) | |
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.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical 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.
Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.
Williams, I. 1979. Studies in the genera of the Diosmeae (Rutaceae): 8. Journal of South African Botany 45(2):147-184.
Williams, I. 1982. Studies in the genera of the Diosmeae (Rutaceae): 14. A review of the genus Diosma L. Journal of South African Botany 48(3):329-407.
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Citation |
| Trinder-Smith, T., Raimondo, D. & Zikishe, V. 2012. Diosma haelkraalensis I.Williams. National Assessment: Red List of South African Plants version . Accessed on 2025/05/20 |
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