Taxonomy
Scientific Name
Brachystelma oianthum Schltr.
Higher Classification
Dicotyledons
Family
APOCYNACEAE
National Status
Status and Criteria
Least Concern
Assessment Date
2018/05/28
Assessor(s)
L. von Staden
Justification
Brachystelma oianthum is a widespread species with an extent of occurrence (EOO) of 70 062 km² and is known from more than 10 locations. It is declining due to ongoing habitat loss, but is not yet in danger of extinction, and is therefore listed as Least Concern.
Distribution
Endemism
South African endemic
Provincial distribution
Gauteng, Limpopo, Mpumalanga, North West
Range
This species is endemic and widespread across the high-lying areas of northern South Africa.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Wolkberg Dolomite Grassland, Northern Escarpment Quartzite Sourveld, Carletonville Dolomite Grassland, Waterberg-Magaliesberg Summit Sourveld, Rand Highveld Grassland, Tsakane Clay Grassland, Soutpansberg Summit Sourveld, Woodbush Granite Grassland, Northern Escarpment Dolomite Grassland
Description
It occurs in rocky outcrops in montane areas.
Threats
Brachystelma oianthum has lost habitat to urban expansion in Gauteng and around Nelspruit. On the Limpopo and Mpumalanga Drakensberg Escarpment, it has declined due to habitat loss to timber plantations. About 40% of its habitat has been irreversibly modified, and loss continues.
Population

This is a rarely recorded species, and is known from scattered records. Plants are cryptic and easily overlooked when not in flower. It can be locally common in suitable habitat (Dyer 1983), but more often occurs as scattered individuals.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Brachystelma oianthum Schltr.Least Concern Raimondo et al. (2009)
Bibliography

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.


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.


Citation
von Staden, L. 2018. Brachystelma oianthum Schltr. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14

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Distribution map


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