Taxonomy
Scientific Name
Euphorbia grandialata R.A.Dyer
Higher Classification
Dicotyledons
Family
EUPHORBIACEAE
National Status
Status and Criteria
Rare
Assessment Date
2008/05/16
Assessor(s)
P.J.D. Winter, J.E. Victor & L. von Staden
Justification
EOO 360 km², total population estimated as <5000 mature individuals, based on surveys of 14 sites in the Olifants and Steelpoort River valleys. Not affected by mining or grazing, and not declining.
Distribution
Endemism
South African endemic
Provincial distribution
Limpopo
Range
Sekhukhuneland, Olifants River and Steelpoort River valleys.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Ohrigstad Mountain Bushveld, Poung Dolomite Mountain Bushveld
Description
Mixed bushveld, occurs on dolomitic and ironstone ridges, 600-700 m.
Threats
Occurs in an area that is mainly utilized as communal rangelands, with a few old mining sites. However, this species occurs on dolomite, which is generally not affected by mining - mining sites tend to be on mineral rich norite. This large spiny shrub is also unlikely to be negatively affected by grazing and trampling.
Population

Most populations visited had between 200-250 individuals, with a few populations having only between 50-75 individuals.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Euphorbia grandialata R.A.DyerRare Raimondo et al. (2009)
Euphorbia grandialata R.A.DyerRare Hilton-Taylor (1996)
Euphorbia grandialata R.A.DyerRare Hall et al. (1980)
Bibliography

Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.


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.


Citation
Winter, P.J.D., Victor, J.E. & von Staden, L. 2008. Euphorbia grandialata R.A.Dyer. National Assessment: Red List of South African Plants version . Accessed on 2024/07/12

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Distribution map


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