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Scientific Name | Oxalis crocea T.M.Salter |
Higher Classification | Dicotyledons |
Family | OXALIDACEAE |
National Status |
Status and Criteria | Vulnerable B1ab(iii,v) |
Assessment Date | 2015/05/01 |
Assessor(s) | N.A. Helme, L.L. Dreyer, K.C. Oberlander, P.C.V. Van Wyk & L. von Staden |
Justification | EOO 2649 km², plants at fewer than 10 locations continue to decline due to ongoing habitat loss and degradation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Port Nolloth to Steinkopf and southwards to Hondeklipbaai. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Riethuis-Wallekraal Quartz Vygieveld, Anenous Plateau Shrubland, Southern Richtersveld Inselberg Shrubland, Southern Richtersveld Scorpionstailveld, Namaqualand Heuweltjieveld |
Description | Clays and coarse, gravely slopes. |
Threats |
| This species is threatened by overgrazing and resultant habitat degradation on the coastal lowlands between Port Nolloth and the Anenous Pass (P.C.V. van Wyk pers. obs.). Inland of Kleinsee it is threatened by ongoing habitat loss to mining. Subpopulations further south are protected in the Namaqua National Park and not threatened. |
Population |
Subpopulations are often small (L.L. Dreyer and K.C. Oberlander pers. obs.), and localized (N.A. Helme pers. obs.). It has been recorded only a few times, from a few, widely scattered areas. It is possible that more undiscovered subpopulations may exist.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Oxalis crocea T.M.Salter | VU D2 | Raimondo et al. (2009) | | Oxalis crocea T.M.Salter | Insufficiently Known | Hilton-Taylor (1996) | | Oxalis crocea T.M.Salter | Uncertain | 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.
Salter, T.M. 1944. The genus Oxalis in South Africa: a taxonomic revision. Journal of South African Botany Supplement 1:1-355.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
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Citation |
| Helme, N.A., Dreyer, L.L., Oberlander, K.C., Van Wyk, P.C.V. & von Staden, L. 2015. Oxalis crocea T.M.Salter. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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