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Scientific Name | Oxalis rubricallosa Dreyer, Roets & Oberl. |
Higher Classification | Dicotyledons |
Family | OXALIDACEAE |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2015/05/01 |
Assessor(s) | F. Roets, K.C. Oberlander, D. Raimondo, P.C.V. Van Wyk & L. von Staden |
Justification | A localized species, known from five locations and potentially threatened by overgrazing. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Richtersveld. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Northern Richtersveld Scorpionstailveld, Central Richtersveld Mountain Shrubland, Stinkfonteinberge Quartzite Fynbos, Noms Mountain Desert |
Description | South-facing, rocky mountain slopes. |
Threats |
| This species occurs on upper slopes in more remote areas of the Richtersveld where grazing pressure is not as intense as closer to settlements and on the western plains. However, as grazing lands in these areas are increasingly degraded (in some of these areas no palatable species remain), herders are likely to increasingly move into the mountains in search of better grazing for their livestock. Some areas where this species occurs, such as the northern parts of the Vandersterrberg, are already occasionally visited by herders. |
Population |
This species is a localized habitat specialist confined to the central mountain ranges of the Richtersveld, but locally common in suitable habitat. The population is currently stable.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Oxalis rubricallosa Dreyer, Roets & Oberl. | VU D2 | 2015.1 | | Oxalis rubricallosa Dreyer, Roets & Oberl. | Rare | 2014.1 | |
Bibliography |
Roets, F., Oberlander, K.C. and Dreyer, L.L. 2013. Two new Oxalis species (Oxalidaceae) from the Ai-Ais/Richtersveld Transfontier Park. Blumea 57:229-235.
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Citation |
| Roets, F., Oberlander, K.C., Raimondo, D., Van Wyk, P.C.V. & von Staden, L. 2015. Oxalis rubricallosa Dreyer, Roets & Oberl. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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