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Scientific Name | Geissorhiza roseoalba (G.J.Lewis) Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
Synonyms | Engysiphon roseoalbus (G.J.Lewis) G.J.Lewis |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2023/06/16 |
Assessor(s) | T. Patel |
Justification | This species has an extent of occurrence (EOO) of 18 130 km² and an area of occupancy (AOO) of 96 km². It is known from at least 15 subpopulations. It is not threatened and is therefore listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape, Western Cape |
Range | An endemic to South Africa, extending from near Calitzdorp in the Little Karoo in the Western Cape province, east through the Long Kloof and Baviaanskloof to the Great Winterhoek Mountains near Uitenhage in the Eastern Cape province. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Fynbos |
Description | It occurs mainly on stony sandstone slopes in dry fynbos vegetation, flowering mainly after fire. |
Threats |
| There are low levels of habitat degradation as a result of competition from invasive alien species and too frequent fires. These pressures impact the subpopulations in the western portion of the range, the vast majority of subpopulations are not subject to any severe threats. |
Population |
The population has a stable trend and is known from at least 15 subpopulations.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Geissorhiza roseoalba (G.J.Lewis) Goldblatt | Least Concern | Raimondo et al. (2009) | |
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.
Goldblatt, P. and Manning, J.C. 2020. Iridaceae of southern Africa. Strelitzia 42. South African National Biodiversity 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.
Vlok, J. and Schutte-Vlok, A.L. 2010. Plants of the Klein Karoo. Umdaus Press, Hatfield.
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Citation |
| Patel, T. 2023. Geissorhiza roseoalba (G.J.Lewis) Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2024/09/08 |
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