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Scientific Name | Euchaetis longicornis I.Williams |
Higher Classification | Dicotyledons |
Family | RUTACEAE |
National Status |
Status and Criteria | Critically Endangered B1ab(iii)+2ab(iii); C2a(ii) |
Assessment Date | 2006/08/26 |
Assessor(s) | D. Raimondo |
Justification | EOO 11 km², AOO < 10 km², one to two remaining locations continue to decline due to ongoing habitat degradation as a result of overgrazing, inappropriate fire management and alien plant invasion. It is highly likely that the severely grazed and regularly burnt subpopulation at Plaatjieskops is extinct. When last surveyed in the 1980s there were fewer than 200 mature individuals. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Riversdale. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Ruens Silcrete Renosterveld, Swellendam Silcrete Fynbos |
Description | Ferricrete rock chips on hard, dry, whitish-grey clay soil. |
Threats |
| According to ISEP data, the Plaatjieskop area is under severe grazing pressure and is too regularly burnt. It was not found in the 1990s and this may indicate that the population at this site has gone extinct and the land management has not change in this area since 1980s, thus, the threat remains the same.
The Riversdale reserve is not well managed and is threatened by alien species. This species has not been recorded here since 1970 (D. Raimondo). |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Euchaetis longicornis I.Williams | CR B1ab(iii)+2ab(iii); C2a(ii) | Raimondo et al. (2009) | | Euchaetis longicornis I.Williams | VU D2 | Victor (2002) | | Euchaetis longicornis I.Williams | Endangered | 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.
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Citation |
| Raimondo, D. 2006. Euchaetis longicornis I.Williams. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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