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Scientific Name | Babiana lewisiana B.Nord. |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Vulnerable B1ab(iii)+2ab(iii) |
Assessment Date | 2021/04/29 |
Assessor(s) | D. Raimondo & N.A. Helme |
Justification | This species has an extent of occurrence (EOO) of 6858 km², and an area of occupancy (AOO) of 48 km². It is known from between six and ten locations, and is experiencing ongoing slow loss of habitat to mining and crop cultivation. It is therefore listed as Vulnerable under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | It is a rare endemic of the Knersvlakte, near Vredendal in Western Cape, South Africa. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Namaqualand Heuweltjieveld, Knersvlakte Quartz Vygieveld, Namaqualand Riviere |
Description | This species is confined to stony quartzite ground near Hol River. |
Threats |
| It has lost at least 36% of its habitat (calculated using landcover data in GIS) to agriculture. There is ongoing slow loss of habitat due to crop cultivation and mining. |
Population |
There is not much known about the population of this species. It is known from three subpopulations: Vanrhynsdorp, Hondeklipbaai and Toringberg, where less than 50 plants were seen in 2009 and 2011.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Babiana lewisiana B.Nord. | VU D2 | Raimondo et al. (2009) | | Babiana lewisiana B.Nord. | Rare | Hilton-Taylor (1996) | |
Bibliography |
Goldblatt, P. and Manning, J.C. 2007. A revision of the southern African genus Babiana, Iridaceae, Crocoideae. Strelitzia 18:1-97. South African National Biodiversity Institute, Pretoria.
Goldblatt, P. and Manning, J.C. 2020. Iridaceae of southern Africa. Strelitzia 42. South African National Biodiversity Institute, Pretoria.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Nordenstam, B. 1961. New species of Euryops. Botaniska Notiser 114:81-83.
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 |
| Raimondo, D. & Helme, N.A. 2021. Babiana lewisiana B.Nord. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09 |
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