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Scientific Name | Crotalaria pearsonii Baker f. |
Higher Classification | Dicotyledons |
Family | FABACEAE |
National Status |
Status and Criteria | Vulnerable B1ab(iii,v) |
Assessment Date | 2015/05/04 |
Assessor(s) | L. von Staden |
Justification | A fairly widespread (EOO 13 551 km²), but very rare and localized habitat specialist, occurring at between five and 10 locations and declining due to ongoing habitat loss and degradation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Southern Richtersveld to Aggeneys and Kenhardt. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Goariep Mountain Succulent Shrubland, Bushmanland Inselberg Shrubland, Central Richtersveld Mountain Shrubland, Bushmanland Arid Grassland |
Description | Dry ravines, in granite and quartzite derived soils. |
Threats |
| In the Richtersveld this species is threatened by severe overgrazing, trampling and ongoing habitat degradation. In Bushmanland it is threatened by habitat loss to mining, and possibly overgrazing as well, although grazing pressure is not as high as in the Richtersveld. |
Population |
In the Richtersveld this species is known from a few localized, isolated subpopulations, and all are declining due to overgrazing. Further east, records are also sporadic, and this species appears to be localized to Bushmanland inselbergs. Around Aggeneys it is also declining due to habitat loss to mining.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Crotalaria pearsonii Baker f. | VU B1ab(iii,v) | 2015.1 | | Crotalaria pearsonii Baker f. | Rare | Raimondo et al. (2009) | | Crotalaria pearsonii Baker f. | Indeterminate | Hilton-Taylor (1996) | |
Bibliography |
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Le Roux, M.M. and Van Wyk, B.-E. 2013. A taxonomic revision of Amphitrichae, a new section of Crotalaria (Fabaceae). Systematic Botany 38(3):638-652.
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.
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Citation |
| von Staden, L. 2015. Crotalaria pearsonii Baker f. National Assessment: Red List of South African Plants version . Accessed on 2025/07/03 |
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