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Scientific Name | Ixia ramulosa (G.J.Lewis) Goldblatt & J.C.Manning |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
Synonyms | Ixia latifolia D.Delaroche var. ramulosa G.J.Lewis |
National Status |
Status and Criteria | Near Threatened B1ab(iii) |
Assessment Date | 2018/10/02 |
Assessor(s) | L. von Staden |
Justification | Ixia ramulosa is a range-restricted species with an extent of occurrence (EOO) of 7954 km². It is still fairly common, occurring at around 20 locations, and is threatened in parts of its range by habitat loss to crop cultivation and overgrazing. It is listed as Near Threatened. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape, Western Cape |
Range | This species is endemic to South Africa, and occurs from Kamieskroon to the Bokkeveld Escarpment and the Koebee Mountains. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Namaqualand Blomveld, Namaqualand Granite Renosterveld, Kamiesberg Mountains Shrubland, Namaqualand Klipkoppe Shrubland, Hantam Karoo, Vanrhynsdorp Shale Renosterveld, Kamiesberg Granite Fynbos |
Description | It occurs in granitic sand or light clay loam. |
Threats |
| On the plains west of Kamieskroon, large sections of this species' habitat have been ploughed in the past. Most of this area is now incorporated within the Namaqua National Park, and the threat of habitat loss has ceased. Many recent records from this area indicate that the subpopulation has survived the disturbance. A small proportion (c. 10%) of this species' habitat has also been ploughed in the Kamiesberg, but this is unlikely to be a severe threat to the subpopulation in this area. This area is however impacted by heavy overgrazing, particularly in communal areas around Leliefontein, where large herds of feral donkeys are causing ongoing destruction to the natural vegetation. On the Bokkeveld Plateau around Nieuwoudtville, cultivation of rooibos tea is expanding rapidly, however, no records of this species are in areas immediately impacted by tea cultivation, and the species is also protected within the Oorlogskloof Nature Reserve. |
Population |
Ixia ramulosa is a range-restricted, but fairly common species, particularly within the Namaqua National Park.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Ixia latifolia D.Delaroche var. ramulosa G.J.Lewis | Least Concern | 2012.1 | | Ixia latifolia D.Delaroche var. ramulosa G.J.Lewis | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Goldblatt, P. and Manning, J.C. 2011. Systematics of the southern African genus Ixia (Iridaceae). 3. Sections Hyalis and Morphixia. Bothalia 41(1):83-134.
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. 2018. Ixia ramulosa (G.J.Lewis) Goldblatt & J.C.Manning. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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