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Scientific Name | Asclepias dissona N.E.Br. |
Higher Classification | Dicotyledons |
Family | APOCYNACEAE |
Synonyms | Schizoglossum capitatum Schltr. |
National Status |
Status and Criteria | Critically Endangered (Possibly Extinct) |
Assessment Date | 2016/01/19 |
Assessor(s) | L. von Staden |
Justification | This species was last recorded in 1932. In spite of extensive survey efforts by the Mpumalanga Parks and Tourism Agency, this species has not been found. Its habitat is extensively degraded and it is possibly extinct. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Mpumalanga |
Range | Carolina and Machadodorp. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Steenkampsberg Montane Grassland, Eastern Highveld Grassland |
Description | Damp grassland. |
Threats |
| Grasslands within the known range of this species are extensively modified and degraded due to open-cast coal mining, crop cultivation and overgrazing. Very little remains intact. |
Population |
Population trend | Unknown |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Asclepias dissona N.E.Br. | CR PE | 2017.1 | | Asclepias dissona N.E.Br. | VU B1ab(ii,iii)+2ab(ii,iii) | Raimondo et al. (2009) | | Asclepias dissona N.E.Br. | Indeterminate | Hilton-Taylor (1996) | |
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.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Nicholas, A. 1982. Taxonomic studies in Asclepias (Asclepiadeae) with particular reference to the narrow-leaved species in southern Africa. University of Natal.
Nicholas, A. 1999. A taxonomic reassessment of the subtribe Asclepiadinae (Asclepiaceae) in Southern Africa. Unpublished Ph.D., University of Durban-Westville, Durban.
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. 2016. Asclepias dissona N.E.Br. National Assessment: Red List of South African Plants version . Accessed on 2025/08/21 |
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