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Scientific Name | Geissorhiza divaricata Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2021/08/23 |
Assessor(s) | D. Raimondo, L. von Staden & T. Patel |
Justification | This species has an extent of occurrence (EOO) of 940 km², and an area of occupancy (AOO) of 36 km². It is not threatened as it occurs in rocky areas not suitable for cultivation. It is therefore listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape, Western Cape |
Range | It is restricted to the Bokkeveld Mountains in Northern Cape, South Africa and the Gifberg in Western Cape. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Fynbos |
Description | It occurs in rocky sandstone pavements, in rock crevices in fynbos. |
Threats |
| Despite its occurrence in an area farmed for rooibos tea, its specific habitat of rock pavements is not threatened because the soils over these pavements are too shallow to be ploughed. |
Population |
Nine subpopulations have been recorded, but the likelihood of many more undiscovered subpopulations exists. The population trend is stable.
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Population trend | Stable |
Conservation |
| It is conserved in the Oorlogskloof Nature Reserve. |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Geissorhiza divaricata Goldblatt | Rare | Raimondo et al. (2009) | | Geissorhiza divaricata Goldblatt | Not Threatened | 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.
Goldblatt, P. and Manning, J.C. 2020. Iridaceae of southern Africa. Strelitzia 42. South African National Biodiversity Institute, Pretoria.
Goldblatt, P., Manning, J.C. and Nänni, I. 2009. New species of Geissorhiza (Iridaceae:Crocoideae) from the southern African winter rainfall zone, range extensions, taxonomic changes, and notes on pollen morphology. Bothalia 39(2):123-152.
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 |
| Raimondo, D., von Staden, L. & Patel, T. 2021. Geissorhiza divaricata Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2024/09/14 |
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