| Scientific Name | Wiborgia obcordata (P.J.Bergius) Thunb. | Higher Classification | Dicotyledons | Family | FABACEAE | Synonyms | Crotalaria floribunda Lodd., Crotalaria obcordata P.J.Bergius, Hedysarum capense Burm.f., Jacksonago obcordata (P.J.Bergius) Kuntze, Loethainia obcordata (P.J.Bergius) Heynh., Wiborgia floribunda Lodd. |
National Status | Status and Criteria | Least Concern | Assessment Date | 2020/03/03 | Assessor(s) | L. von Staden | Justification | Wiborgia obcordata is a widespread and common species, with an extent of occurrence (EOO) of 105 198 km². It is declining in parts of its range, but not yet in danger of extinction, and is therefore listed as Least Concern. |
Distribution | Endemism | South African endemic | Provincial distribution | Northern Cape, Western Cape | Range | This species is endemic to South Africa, and is widespread across the western part of the country, from coastal Namaqualand to Vanrhynsdorp and the Bokkeveld Escarpment, southwards to the Cape Peninsula and eastwards to Mossel Bay. |
Habitat and Ecology | Major system | Terrestrial | Major habitats | Cape Flats Sand Fynbos, Hawequas Sandstone Fynbos, Bokkeveld Sandstone Fynbos, Breede Quartzite Fynbos, Swartruggens Quartzite Fynbos, Garden Route Granite Fynbos, Peninsula Granite Fynbos, Boland Granite Fynbos, Albertinia Sand Fynbos, Hartenbos Dune Thicket, Hangklip Sand Fynbos, South Outeniqua Sandstone Fynbos, Atlantis Sand Fynbos, Hopefield Sand Fynbos, Leipoldtville Sand Fynbos, Knysna Sand Fynbos, Namaqualand Sand Fynbos, Swellendam Silcrete Fynbos, Swartland Alluvium Fynbos, Breede Alluvium Fynbos, Kouebokkeveld Alluvium Fynbos, Breede Sand Fynbos, Swartland Granite Renosterveld, Namaqualand Inland Duneveld, Namaqualand Strandveld, Klawer Sandy Shrubland, Namaqualand Spinescent Grassland, Groot Brak Dune Strandveld, Blombos Strandveld, Cape Flats Dune Strandveld, Langebaan Dune Strandveld, Saldanha Flats Strandveld, North Langeberg Sandstone Fynbos, Lambert's Bay Strandveld, South Langeberg Sandstone Fynbos, Swartland Alluvium Renosterveld, Breede Alluvium Renosterveld, Peninsula Sandstone Fynbos, Piketberg Sandstone Fynbos, Winterhoek Sandstone Fynbos, Cederberg Sandstone Fynbos, Nardouw Sandstone Fynbos, Graafwater Sandstone Fynbos, Agter-Sederberg Shrubland, Saldanha Granite Strandveld | Description | It occurs on sandy flats and slopes in fynbos, succulent karoo and strandveld. |
Threats | | Subpopulations on the coastal plains of the Western Cape has been much reduced and fragmented by habitat loss to urban expansion, coastal development and agriculture. Loss continues rapidly, with 4% habitat loss recorded between 1990 and 2014, mainly in the Sandveld region of the Western Cape. In addition, many subpopulations persisting on small fragments are threatened by competition from alien invasive plants and habitat degradation due to overgrazing. |
Population | There is no information available on the population of this species.
| Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Wiborgia obcordata (P.J.Bergius) Thunb. | Least Concern | Raimondo et al. (2009) | |
Bibliography | Dahlgren, R. 1975. Studies on Wiborgia Thunb. and related species of Lebeckia Thunb. (Fabaceae). Opera Botanica 38:1-83.
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.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity 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.
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Citation | | von Staden, L. 2020. Wiborgia obcordata (P.J.Bergius) Thunb. National Assessment: Red List of South African Plants version . Accessed on 2025/01/17 |
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