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Scientific Name | Oxalis uliginosa Schltr. |
Higher Classification | Dicotyledons |
Family | OXALIDACEAE |
National Status |
Status and Criteria | Endangered B1ab(iii,v)+2ab(iii,v) |
Assessment Date | 2012/11/29 |
Assessor(s) | K.C. Oberlander, L.L. Dreyer, N.A. Helme & D. Raimondo |
Justification | EOO 771 km² and AOO <100 km², between two and five locations are suspected to be extant. This species has lost the majority of its habitat to citrus cultivation and dam construction. Habitat quality at remaining locations continue to decline due to overgrazing and alien plant invasion. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Clanwilliam to Citrusdal. |
Habitat and Ecology |
Major system | Freshwater |
Major habitats | Piketberg Sandstone Fynbos, Cederberg Sandstone Fynbos, Nardouw Sandstone Fynbos, Graafwater Sandstone Fynbos |
Description | Marshy places or in seepage bands. |
Threats |
| The building of the Clanwilliam and Bulshoek dams have likely resulted in much suitable habitat for this species being lost. In addition, crop cultivation has led to significant loss of habitat in the past. Remaining subpopulations are threatened by ongoing habitat degradation as a result of invasive alien plants and livestock grazing. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Oxalis uliginosa Schltr. | CR B1ab(iii)+2ab(iii) | 2012.1 | | Oxalis uliginosa Schltr. | CR B1ab(iii)+2ab(iii) | Raimondo et al. (2009) | |
Bibliography |
Cook, C.D.K. 2004. Aquatic and wetland plants of southern Africa. Backhuys Publishers, Leiden, The Netherlands.
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
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.
Sieben, E.J.J. 2009. The status and distribution of vascular plants (Magnoliophyta, Lycophyta, Pteridophyta). In: W.R.T. Darwall, K.G. Smith, D. Tweddle and P. Skelton (eds.), The status and distribution of freshwater biodiversity in southern Africa (pp. 83-98), IUCN and SAIAB, Gland, Switzerland and Grahamstown, South Africa.
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Citation |
| Oberlander, K.C., Dreyer, L.L., Helme, N.A. & Raimondo, D. 2012. Oxalis uliginosa Schltr. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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