Taxonomy
Scientific Name
Convolvulus dregeanus Choisy
Higher Classification
Dicotyledons
Family
CONVOLVULACEAE
Synonyms
Convolvulus liniformis Rendle
National Status
Status and Criteria
Least Concern
Assessment Date
2020/02/18
Assessor(s)
L. von Staden
Justification
Convolvulus dregeanus is widespread, with an extent of occurrence (EOO) of 239 649 km². It is not in danger of extinction, and is therefore listed as Least Concern.
Distribution
Endemism
South African endemic
Provincial distribution
Eastern Cape, Free State, Gauteng, Mpumalanga, Northern Cape, North West, Western Cape
Range
This species is endemic and widespread across central South Africa, from southern Gauteng to Beaufort West in the Western Cape.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Western Free State Clay Grassland, Karoo Escarpment Grassland, Vaal-Vet Sandy Grassland, Vaal Reefs Dolomite Sinkhole Woodland, Klerksdorp Thornveld, Western Highveld Sandy Grassland, Aliwal North Dry Grassland, Xhariep Karroid Grassland, Besemkaree Koppies Shrubland, Bloemfontein Dry Grassland, Central Free State Grassland, Stormberg Plateau Grassland, Bloemfontein Karroid Shrubland, Eastern Upper Karoo, Eastern Free State Clay Grassland, Eastern Free State Sandy Grassland, Basotho Montane Shrubland, Frankfort Highveld Grassland, Soweto Highveld Grassland, Tsomo Grassland, Queenstown Thornveld, Tarkastad Montane Shrubland, Upper Karoo Hardeveld, Northern Upper Karoo, Winburg Grassy Shrubland
Description
It occurs in sandy clay or brackish soils in short grassland and in disturbed areas.
Threats
Threats to Convolvulus dregeanus include habitat degradation and invasive alien species.
Population

There is no information available on the population of this species.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Convolvulus dregeanus ChoisyLeast Concern Raimondo et al. (2009)
Bibliography

Meeuse, A.D.J. and Welman, W.G. 2000. Convolvulaceae. In: G. Germishuizen (ed). Flora of southern Africa 28 Part 1:1-138. 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.


Citation
von Staden, L. 2020. Convolvulus dregeanus Choisy. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14

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Distribution map


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