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Scientific Name | Oxalis marlothii Schltr. ex R.Knuth |
Higher Classification | Dicotyledons |
Family | OXALIDACEAE |
National Status |
Status and Criteria | Endangered B1ab(iii,v) |
Assessment Date | 2016/10/16 |
Assessor(s) | L.L. Dreyer, K.C. Oberlander, D. Raimondo & L. von Staden |
Justification | A range-restricted species (EOO 588 km²), occurring at two to three locations and declining due to ongoing habitat loss and degradation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Sutherland. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Tanqua Escarpment Shrubland, Roggeveld Shale Renosterveld, Nieuwoudtville-Roggeveld Dolerite Renosterveld |
Description | High altitude shale and sandstone plateaus. |
Threats |
| Threatened by ongoing habitat loss and degradation due to overgrazing and crop cultivation. |
Population |
Oxalis marlothii is a very rare and localized species, and known from only a few collections.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Oxalis marlothii Schltr. ex R.Knuth | EN B1ab(iii,v) | 2017.1 | | Oxalis marlothii Schltr. ex R.Knuth | Critically Endangered (Possibly Extinct) | Raimondo et al. (2009) | | Oxalis marlothii Schltr. ex R.Knuth | Insufficiently Known | Hilton-Taylor (1996) | | Oxalis marlothii Schltr. ex R.Knuth | 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 |
| Dreyer, L.L., Oberlander, K.C., Raimondo, D. & von Staden, L. 2016. Oxalis marlothii Schltr. ex R.Knuth. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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