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Scientific Name | Ixia vanzijliae L.Bolus |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Vulnerable B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v) |
Assessment Date | 2015/06/06 |
Assessor(s) | D. Raimondo, L. von Staden & P. Goldblatt |
Justification | A rare, localized species (EOO 272 km²), remaining at between five and seven locations and declining due to ongoing habitat loss and degradation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Worcester to Robertson. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Breede Shale Renosterveld, Breede Alluvium Renosterveld |
Description | Seasonally moist to dry clay flats in Breede Alluvium Renosterveld. |
Threats |
| This species' habitat is extensively modified as a result of agricultural expansion, and less than 40% remains intact. Habitat loss and degradation is ongoing. |
Population |
This species is known from a few, small subpopulations, two consisting of fewer than 50 mature individuals.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Ixia vanzijliae L.Bolus | VU B1ab(ii,iii,iv,v) | Raimondo et al. (2009) | | Ixia vanzijliae L.Bolus | Insufficiently Known | Hilton-Taylor (1996) | |
Bibliography |
De Vos, M.P. 1999. Ixia. In: O.A. Leistner (ed). Flora of Southern Africa 7 Iridaceae Part 2: Ixioideae, Fascicle 1: Ixieae:3-87. National Botanical Institute, Pretoria.
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.
Goldblatt, P. and Manning, J.C. 2016. Systematics of the southern African genus Ixia L. (Iridaceae): 5. Synopsis of section Ixia, including five new species. South African Journal of Botany 104:175-198.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Lewis, G.J. 1962. South African Iridaceae. The genus Ixia. Journal of South African Botany 28:45-195.
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., von Staden, L. & Goldblatt, P. 2015. Ixia vanzijliae L.Bolus. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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