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Scientific Name | Euryops sulcatus (Thunb.) Harv. |
Higher Classification | Dicotyledons |
Family | ASTERACEAE |
Synonyms | Jacobaeastrum sulcatum (Thunb.) Kuntze, Othonna sulcata Thunb. |
Common Names | Suurharpuis (a), Waterharpuis (a), Waterharpuisbossie (a) |
National Status |
Status and Criteria | Vulnerable B1ab(iii)+2ab(iii) |
Assessment Date | 2019/11/07 |
Assessor(s) | D. Raimondo |
Justification | Euryops sulcatus has a restricted range, with an extent of occurrence (EOO) of 1083 km². It has been recorded from five locations, but likely to occur at a few more within unexplored suitable habitat within its range. It continues to decline due to ongoing habitat degradation as a result of drought and overgrazing. It is therefore listed as Vulnerable under the criteria B1ab(iii)+2ab(iii). |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is endemic to South Africa, and is found on the Roggeveld and Nuweveld escarpments on the border between the Western and Northern Cape. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Roggeveld Karoo, Roggeveld Shale Renosterveld |
Description | It occurs on rocky slopes in dry renosterveld, 1500-1800 m. |
Threats |
| There is ongoing habitat degradation across this species' range due to the combination of livestock overgrazing and a persistent drought. |
Population |
Euryops sulcatus is known from a few scattered records across the Roggeveld and Nuweveld Escarpments. Nordenstam (1968) reports that it is locally common in suitable habitat. This species is likely to be overlooked and more common than records suggest. A continuing decline is inferred from ongoing habitat degradation.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Euryops sulcatus (Thunb.) Harv. | VU B1ab(iii)+2ab(iii) | 2020.1 | | Euryops sulcatus (Thunb.) Harv. | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Harvey, W.H. 1894. Compositae. In: W.H. Harvey and O.W. Sonder (eds). Flora Capensis III (Rubiaceae to Campanulaceae):44-530. L. Reeve & Co., Ltd., Ashford.
Nordenstam, B. 1968. The genus Euryops. Part I. Taxonomy. Opera Botanica 20:7-409.
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.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
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Citation |
| Raimondo, D. 2019. Euryops sulcatus (Thunb.) Harv. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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