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Scientific Name | Ixia vinacea G.J.Lewis |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Critically Endangered B1ab(ii,iii,v)+2ab(ii,iii,v) |
Assessment Date | 2015/06/30 |
Assessor(s) | P. Goldblatt, J.C. Manning, I. Ebrahim & L. von Staden |
Justification | EOO <2 km², about 500 plants remaining at a single location continue to decline due to ongoing habitat degradation and competition from alien invasive plants. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Tulbagh. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Breede Shale Fynbos, Breede Alluvium Fynbos |
Description | Stony clay flats. |
Threats |
| This species is endemic to Breede Alluvium Fynbos, a lowland vegetation type of which less than 40% remains intact, after extensive loss and fragmentation due to agricultural expansion. Habitat loss and degradation continues, particularly due to inappropriate fire management, overgrazing and spreading, unmanaged alien invasive plants. |
Population |
This species appears to have had a very limited original distribution, occurring from the town of Tulbagh along the Breede River's alluvial flats to Wolseley, a distance of about 20 km. Surveys of all remaining lowland fragments in the upper Breede Valley in 2006 and 2007 recorded a single remaining subpopulation of about 500 mature individuals scattered across three fragments on a farm south of Tulbagh. These plants are all affected by ongoing habitat degradation due to overgrazing and spreading alien invasive plants, and is thus considered one location.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Ixia vinacea G.J.Lewis | CR B1ab(ii,iii,v)+2ab(ii,iii,v) | 2015.1 | | Ixia vinacea G.J.Lewis | EN B1ab(ii,iii,v)+2ab(ii,iii,v) | Raimondo et al. (2009) | | Ixia vinacea G.J.Lewis | Indeterminate | 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.
Manning, J., Goldblatt, P. and Snijman, D. 2002. The color encyclopedia of Cape bulbs. Timber Press, Portland/Cambridge.
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 |
| Goldblatt, P., Manning, J.C., Ebrahim, I. & von Staden, L. 2015. Ixia vinacea G.J.Lewis. National Assessment: Red List of South African Plants version . Accessed on 2025/05/16 |
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