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Scientific Name | Brachystelma dimorphum R.A.Dyer subsp. gratum R.A.Dyer |
Higher Classification | Dicotyledons |
Family | APOCYNACEAE |
National Status |
Status and Criteria | Critically Endangered B1ab(iii,v)+2ab(iii,v) |
Assessment Date | 2016/08/24 |
Assessor(s) | L. von Staden |
Justification | Plants at a single known location (EOO and AOO <10 km²) are threatened by ongoing habitat loss and degradation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Free State |
Range | Welkom. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Western Free State Clay Grassland |
Description | Clay pans in open grassland. |
Threats |
| Areas surrounding salt pans near Welkom are increasingly degraded due to urban and industrial expansion, mining, agriculture, alien invasive plants and pollution. |
Population |
This taxon is known from only one collection, dating from 1978. Surveys of the type locality and other similar habitat in the area are needed to relocate it in the wild, and to more accurately determine the size and status of the population.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Brachystelma dimorphum R.A.Dyer subsp. gratum R.A.Dyer | CR B1ab(iii,v)+2ab(iii,v) | 2017.1 | | Brachystelma dimorphum R.A.Dyer subsp. gratum R.A.Dyer | VU B2ab(iii) | 2014.1 | | Brachystelma dimorphum R.A.Dyer subsp. gratum R.A.Dyer | Rare | 2013.1 | | Brachystelma dimorphum R.A.Dyer subsp. gratum R.A.Dyer | Rare | Raimondo et al. (2009) | | Brachystelma dimorphum R.A.Dyer subsp. gratum R.A.Dyer | VU D2 | Victor (2002) | | Brachystelma dimorphum R.A.Dyer subsp. gratum R.A.Dyer | Indeterminate | Hilton-Taylor (1996) | |
Bibliography |
Dyer, R.A. 1979. ASCLEPIADACEAE: New records of Brachystelma. Bothalia 12(4):627-629.
Dyer, R.A. 1980. Brachystelma, Ceropegia and Riocreuxia. In: O.A. Leistner (ed). Flora of Southern Africa 27 Part 4:1-88. Botanical Research Institute, Pretoria.
Dyer, R.A. 1983. Ceropegia, Brachystelma and Riocreuxia in southern Africa. A.A. Balkema, Rotterdam, Netherlands.
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 |
| von Staden, L. 2016. Brachystelma dimorphum R.A.Dyer subsp. gratum R.A.Dyer. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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