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Scientific Name | Cynanchum viminale (L.) Bassi subsp. orangeanum (Liede & Meve) Liede & Meve |
Higher Classification | Dicotyledons |
Family | APOCYNACEAE |
Synonyms | Sarcostemma viminale (L.) R.Br. subsp. orangeanum Liede & Meve |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2017/08/31 |
Assessor(s) | L. von Staden |
Justification | Cynanchum viminale subsp. orangeanum is widespread, with an extent of occurrence (EOO) of 101 140 km². It is not in danger of extinction, and is therefore listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Free State, Northern Cape |
Range | This species is endemic to South Africa, where it occurs in the north-eastern parts of the Northern Cape and western Free State. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Winburg Grassy Shrubland, Northern Upper Karoo, Kimberley Thornveld, Xhariep Karroid Grassland, Koranna-Langeberg Mountain Bushveld, Besemkaree Koppies Shrubland, Bloemfontein Karroid Shrubland, Olifantshoek Plains Thornveld, Kuruman Thornveld, Gordonia Plains Shrubland, Kuruman Mountain Bushveld, Vaalbos Rocky Shrubland, Lower Gariep Broken Veld, Schmidtsdrif Thornveld, Ghaap Plateau Vaalbosveld, Kuruman Vaalbosveld, Postmasburg Thornveld |
Description | It occurs on rocky slopes, among boulders and in rock crevices in shrubby thornveld. |
Threats |
| There are no known threats to Cynanchum viminale subsp. orangeanum. |
Population |
It is locally common in suitable habitat (Liede and Meve 1993).
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Cynanchum viminale (L.) Bassi subsp. orangeanum (Liede & Meve) Liede & Meve | LC | 2020.1 | | Sarcostemma viminale (L.) R.Br. subsp. orangeanum Liede & Meve | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Liede, S. and Meve, U. 1993. Towards an understanding of the Sarcostemma viminale (Asclepiadaceae) complex. Botanical Journal of the Linnean Society 112(1):1-15.
Meve, U. and Liede-Schumann, S. 2012. Taxonomic dissolution of Sarcostemma (Apocynaceae: Asclepiadoideae). Kew Bulletin 67(4):751-758.
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. 2017. Cynanchum viminale (L.) Bassi subsp. orangeanum (Liede & Meve) Liede & Meve. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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