Taxonomy
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
An endemic species to the Klein Roggeveld escarpment (extent of occurrence 84 km², and area of occupancy 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 B.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape
Range
Klein Roggeveld Mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Koedoesberge-Moordenaars Karoo, Central Mountain Shale Renosterveld
Description
Open karroid scrub on sandy clay alluvium.
Threats
Threatened at one of its locations (De Hoop farm) by loss of habitat in the past for wheat cultivation further ploughing remains a future threat. Grazing by livestock is a past, present and future threat to this palatable species, 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.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Lotononis venosa B.-E.van WykVU D2Raimondo et al. (2009)
Lotononis venosa B.-E.van WykIndeterminate 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.


Citation
Raimondo, D. 2019. Lotononis venosa B.-E.van Wyk. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/07/10

Comment on this assessment Comment on this assessment
Distribution map

© D. van der Colff

© J.H. Vlok/A.L. Schutte-Vlok

© J.H. Vlok/A.L. Schutte-Vlok


Search for images of Lotononis venosa on iNaturalist