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Scientific Name | Ixia cochlearis G.J.Lewis |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Data Deficient - Insufficient Information |
Assessment Date | 2012/10/31 |
Assessor(s) | L. von Staden |
Justification | A rare, localized species (EOO 9 km²), last recorded in 1946 in an area now extensively transformed to timber plantations. It possibly occurs in similar habitat in an adjacent protected area, but has not been recorded there despite the area being well explored. Not enough is known about the population status and trends of this species to determine its status. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Stellenbosch, Jonkershoek Valley. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Fynbos |
Description | Rocky lower granite slopes. |
Threats |
| Since this species was last recorded, its habitat in the lower Jonkershoek Valley has been extensively transformed to forestry plantations. Plantations are however no longer expanding, and some fragments remain, as well as extensive habitat further up the valley, which is protected within a provincial nature reserve. The species has however never been recorded there, despite the area being well explored. Possible remaining plants in forestry areas lower down the valley are likely to not flower very often as fires are excluded from plantations, and are also likely to be affected by competition from alien invasive plants. |
Population |
A rarely recorded species, last recorded in 1946. It flowers late (November-December), and possibly only in response to fire (Goldblatt and Manning 2011). As there has been extensive habitat loss within the immediate area where this species was last recorded, surveys are needed to determine whether plants still survive.
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Population trend | Unknown |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Ixia cochlearis G.J.Lewis | Rare | 2012.1 | | Ixia cochlearis G.J.Lewis | Rare | Raimondo et al. (2009) | | Ixia cochlearis G.J.Lewis | Insufficiently Known | Hilton-Taylor (1996) | | Ixia cochlearis G.J.Lewis | Uncertain | Hall et al. (1980) | |
Bibliography |
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.
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical 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.
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Citation |
| von Staden, L. 2012. Ixia cochlearis G.J.Lewis. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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