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Scientific Name | Leobordea magnifica (B.-E.van Wyk) B.-E.van Wyk & Boatwr. |
Higher Classification | Dicotyledons |
Family | FABACEAE |
Synonyms | Lotononis magnifica B.-E.van Wyk |
National Status |
Status and Criteria | Critically Endangered B1ab(iii,v)+2ab(iii,v); C2a(i); D |
Assessment Date | 2022/11/22 |
Assessor(s) | B. du Preez, N.A. Helme & D. Raimondo |
Justification | A restricted range endemic to the Kamiesberg Mountains, this species has only been recorded twice, and the subpopulation from the type locality has been lost to overgrazing. It is currently extant at only one location (extent of occurrence and area of occupancy 4 km²). The subpopulation is small consisting of two mature individuals. It is possible that a few other stands of plants of this species exist but since density of individuals is always low no more than 50 mature individuals are likely still extant. The population continues to decline due to livestock overgrazing. It is therefore listed as Critically Endangered under criteria B, C and D. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is occurs in Kamieberg mountains, in the Northern Cape Province of South Africa. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Namaqualand Granite Renosterveld |
Description | It grows in renosterveld on granite flats. |
Threats |
| Agriculture (in the form of ploughing) was a severe threat in the past, and there has been a loss of more than 50% of its habitat in the past 70 years.
Grazing by large herds of feral donkeys, sheep and cattle is a severe threat. The subpopulation from the type locality has gone extinct due to erosion caused by overgrazing. The only other collection made in 2021 was also in severely overgrazed habitat. |
Population |
This species is only known from two collections. The type collection from Kamieberg Mountain was made in 1983, but this subpopulation went extinct due to overgrazing and could not be refound despite extensive searches between 2000 and 2005. A second small subpopulation consisting of only two plants was found in 2021. Searches in suitable habitat elsewhere on the Kamiesberg range during the 2021 field trip did not reveal more plants. The searchers were not exhaustive, however, and it is possible that a few other stands are still extant. The population is declining due to overgrazing. Since this species is part of the palatable legume family it is at high risk of going extinct due to overgrazing.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Lotononis magnifica B.-E.van Wyk | Critically Endangered (Possibly Extinct) | 2012.1 | | Lotononis magnifica B.-E.van Wyk | Critically Endangered (Possibly Extinct) | Raimondo et al. (2009) | | Lotononis magnifica B.-E.van Wyk | Rare | Hilton-Taylor (1996) | |
Bibliography |
Boatwright, J.S., Wink, M. and Van Wyk, B.E. 2011. The generic concept of Lotononis (Crotalarieae, Fabaceae): Reinstatement of the genera Euchlora, Leobordea and Listia and the new genus Ezoloba. Taxon 60(1):161-177.
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.
Van Wyk, B.E. 1991. A synopsis of the genus Lotononis (Fabaceae: Crotalarieae). Contributions from the Bolus Herbarium 14:1-292.
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Citation |
| du Preez, B., Helme, N.A. & Raimondo, D. 2022. Leobordea magnifica (B.-E.van Wyk) B.-E.van Wyk & Boatwr. National Assessment: Red List of South African Plants version . Accessed on 2024/12/06 |
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