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Scientific Name | Oxalis carolina J.Suda & Sudová |
Higher Classification | Dicotyledons |
Family | OXALIDACEAE |
National Status |
Status and Criteria | Vulnerable D1+2 |
Assessment Date | 2022/03/22 |
Assessor(s) | J. Suda, K.C. Oberlander & D. Raimondo |
Justification | A highly localized taxon known from one subpopulation of fewer than 1000 individuals in an area that is potentially threatened by road works. It therefore qualifies as Vulnerable under criterion D. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is found in Hantam between Nieuwoudtville and Calvinia. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Hantam Karoo |
Description | Plants grow in southwest facing stony slopes, in loamy soil, occurring below boulders or in crevices between stones favouring shaded microsites, sheltered either by boulders or by surrounding shrubby vegetation, and exposed to direct sunlight only occasionally and for short periods. |
Threats |
| The only known population of this taxon occurs next to a road and is potentially threatened by road works. |
Population |
The size of the population currently known is estimated at a few hundred individuals. Plants often grow aggregated into clumps. Only a small proportion of individuals flower (and flowers are seldom fully open), while most plants produce only leaves. The palmately compound leaves superficially resemble some multifoliolate Lupinus (Fabaceae) species. Vegetative reproduction via bulbils seems to be the prevailing mode of propagation; bulbils are especially common along the rhizome in autumn. Although it is possible that other subpopulations of O. carolina occur in the area, repeated searches during 2011-2012 in localities around Nieuwoudtville failed to find additional subpopulations.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Oxalis carolina J.Suda & Sudová | VU D1+2 | 2014.1 | |
Bibliography |
Suda, J., Krej?Ãková, J., Sudova, R., Oberlander, K.C. and Dreyer, L.L. 2013. Two new species of Oxalis (Oxalidaceae) from the Greater Cape Floristic Region. Phytotaxa 124(1):13–24.
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Citation |
| Suda, J., Oberlander, K.C. & Raimondo, D. 2022. Oxalis carolina J.Suda & Sudová. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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