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Scientific Name | Sisyranthus anceps Schltr. |
Higher Classification | Dicotyledons |
Family | APOCYNACEAE |
National Status |
Status and Criteria | Endangered B1ab(ii,iii)+2ab(ii,iii) |
Assessment Date | 2014/09/30 |
Assessor(s) | H. Mtshali |
Justification | Historical EOO 98 km², but currently remaining at only four locations (EOO 11 km²), and declining due to ongoing habitat loss and degradation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | KwaZulu-Natal |
Range | Inanda and surrounding areas, north of Durban. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | KwaZulu-Natal Sandstone Sourveld, KwaZulu-Natal Hinterland Thornveld |
Description | Sandstone sourveld. |
Threats |
| This species has lost almost all of its grassland habitat to urban expansion, and at least one known subpopulation occurs on a site earmarked for development. Remaining fragments are degraded due to a lack of fire (many becoming encroached with woody species), and are infested with alien invasive plants. |
Population |
This species was previously known only from the type, collected in 1880 at Inanda. Four new subpopulations have been found since 2010, but these are all confined to small grassland fragments within urban areas, and continue to decline due to ongoing habitat loss and degradation. Two of the subpopulations have been surveyed and are very small, consisting of fewer than 50 mature individuals.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Sisyranthus anceps Schltr. | EN B1ab(ii,iii)+2ab(ii,iii) | 2015.1 | | Sisyranthus anceps Schltr. | Data Deficient | Raimondo et al. (2009) | |
Bibliography |
Brown, N.E. 1909. Asclepiadeae. In: W.T. Thiselton-Dyer (ed). Flora Capensis IV Section I (Vacciniaceae to Gentianeae):518-1036. Lovell Reeve & Co., Ltd., London.
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 |
| Mtshali, H. 2014. Sisyranthus anceps Schltr. National Assessment: Red List of South African Plants version . Accessed on 2025/05/31 |
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