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Scientific Name | Geissorhiza corrugata Klatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2018/10/02 |
Assessor(s) | P. Goldblatt, D. Raimondo & L. von Staden |
Justification | Geissorhiza corrugata has a restricted distribution range, with an extent of occurrence (EOO) of 708 km². It has no severe threats and is therefore not suspected to be in danger of extinction. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is endemic to the Hantam escarpment around Calvinia. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Roggeveld Karoo, Hantam Karoo |
Description | It is localized to seasonally moist, clay soils derived from Karoo shale, on flats and slopes. |
Threats |
| This species has lost about 10% of its habitat to crop cultivation in the past, but there has been no significant expansion of crop fields (less than 1% loss) over 24 years. |
Population |
This species occurs in large subpopulations in suitable habitat (P. Goldblatt pers. comm.). The population is not suspected to be declining.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Geissorhiza corrugata Klatt | Rare | Raimondo et al. (2009) | | Geissorhiza corrugata Klatt | Rare | Hilton-Taylor (1996) | |
Bibliography |
Goldblatt, P. 1985. Systematics of the southern African genus Geissorhiza (Iridaceae-Ixioideae). Annals of the Missouri Botanical Garden 72(2):277-447.
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.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
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., Raimondo, D. & von Staden, L. 2018. Geissorhiza corrugata Klatt. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/07/10 |
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