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Scientific Name | Lotononis venosa B.-E.van Wyk |
Higher Classification | Dicotyledons |
Family | FABACEAE |
National Status |
Status and Criteria | Endangered B1ab(iii)+2ab(iii) |
Assessment Date | 2019/11/10 |
Assessor(s) | D. Raimondo |
Justification | Lotononis venosa is an endemic species to the Klein Roggeveld escarpment, with an extent of occurrence (EOO) of 84 km², and an area of occupancy (AOO) of 16 km². It is known from four locations. Some of the habitat has been transformed for crop cultivation in the past. Overgrazing by livestock and more frequent and persistent droughts are causing ongoing habitat degradation. This species therefore qualifies as Endangered under criterion B1ab(iii)+2ab(iii). |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is endemic to South Africa, and is found in the Klein Roggeveld Mountains. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Koedoesberge-Moordenaars Karoo, Central Mountain Shale Renosterveld |
Description | It occupies open karroid scrub on sandy clay alluvium. |
Threats |
| Lotononis venosa is threatened at one of its locations (De Hoop farm) by loss of habitat in the past for wheat cultivation, further ploughing remains a potential future threat. Grazing by livestock is a past, present and future threat to this palatable species and grazing pressure is intensifying as a result of persistent drought experienced in the region since 2016. |
Population |
Recorded only from herbarium collections, there are no details on the size and trends of the population documented, however degradation of habitat is mentioned on herbarium specimens and is used to infer that the population is likely to be declining.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Lotononis venosa B.-E.van Wyk | EN B1ab(iii)+2ab(iii) | 2020.1 | | Lotononis venosa B.-E.van Wyk | VU D2 | Raimondo et al. (2009) | | Lotononis venosa B.-E.van Wyk | Indeterminate | Hilton-Taylor (1996) | |
Bibliography |
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.
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.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
Van Wyk, B.E. 1990. Studies in the genus Lotononis (Crotalarieae, Fabaceae). 13. Two new species and notes on the occurrence of cleistogamy in the section Leptis. Bothalia 20(1):17-22.
Van Wyk, B.E. 1991. A synopsis of the genus Lotononis (Fabaceae: Crotalarieae). Contributions from the Bolus Herbarium 14:1-292.
Vlok, J. and Schutte-Vlok, A.L. 2010. Plants of the Klein Karoo. Umdaus Press, Hatfield.
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Citation |
| Raimondo, D. 2019. Lotononis venosa B.-E.van Wyk. National Assessment: Red List of South African Plants version . Accessed on 2024/10/06 |
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