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Scientific Name | Wiborgiella fasciculata (Benth.) Boatwr. & B.-E.van Wyk |
Higher Classification | Dicotyledons |
Family | FABACEAE |
Synonyms | Lebeckia fasciculata Benth. |
National Status |
Status and Criteria | Critically Endangered B1ab(iii)+2ab(iii); C2a(i); D |
Assessment Date | 2011/10/20 |
Assessor(s) | J.H. Vlok, D.A. Kamundi & D. Raimondo |
Justification | EOO <6 km², two small, severely fragmented subpopulations consisting in total of only 15 plants are declining due to the effects of habitat fragmentation, including a lack of fire. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Albertinia to Herbertsdale. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Mossel Bay Shale Renosterveld, Gamka Valley Thicket |
Description | Transition between thicket and renosterveld on shales. |
Threats |
| More than 80% of renosterveld within this species' range has been transformed for crop cultivation and only small fragments remain. Natural fire regimes have been completely altered by fragmentation of the habitat, and the population is suspected to be declining due to a lack of fire. Two plants that are confined to a road reserve are also in danger of being extirpated by indiscriminate road verge clearing. This is likely to cause the local extinction of the subpopulation as no plants can be found in the privately owned land across the fence. |
Population |
Wiborgiella fasciculata is a rare and localized species. Suitable habitat within the known range of this species is extensively transformed, and there are currently only two small, severely fragmented subpopulations known. One subpopulation of 13 plants occur in a 6 ha fragment surrounded by crop fields, and two more plants have been found in a 0.2 ha road reserve near Herbertsdale. Searches in adjacent areas did not record any other individuals.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Lebeckia fasciculata Benth. | CR B1ab(iii)+2ab(iii); D | Raimondo et al. (2009) | |
Bibliography |
Boatwright, J.S., Tilney, P.M. and Van Wyk, B.E. 2010. Taxonomy of Wiborgiella (Crotalarieae, Fabaceae), a genus endemic to the greater Cape Region of South Africa. Systematic Botany 35(2):325-340.
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 |
| Vlok, J.H., Kamundi, D.A. & Raimondo, D. 2011. Wiborgiella fasciculata (Benth.) Boatwr. & B.-E.van Wyk. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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