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Scientific Name | Geissorhiza esterhuyseniae Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Critically Rare |
Assessment Date | 2021/08/23 |
Assessor(s) | P. Goldblatt, K. Naidoo & T. Patel |
Justification | This range restricted habitat specialist has an extent of occurrence (EOO) and an area of occupancy (AOO) of 4 km². It is not threatened as it occurs in a rocky habitat within a protected area. It is therefore listed globally as Least Concern, and nationally, as Rare. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species is known from high elevations in the Groot Winterhoek Mountains of Western Cape province, South Africa. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Western Altimontane Sandstone Fynbos |
Description | It occurs on sheltered, rocky, south-facing sandstone slopes, 2000 m. |
Threats |
| Its habitat is well protected, and the species has no threats. |
Population |
It is known from one subpopulation, which has a stable trend.
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Population trend | Stable |
Conservation |
| This species is protected in the Groot Winterhoek Wilderness Area. |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Geissorhiza esterhuyseniae Goldblatt | Critically Rare | Raimondo et al. (2009) | | Geissorhiza esterhuyseniae Goldblatt | Insufficiently Known | 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. 1995. New species of the southern African genus Geissorhiza (Iridaceae: Ixioideae). Novon 5(2):156-161.
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.
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 |
| Goldblatt, P., Naidoo, K. & Patel, T. 2021. Geissorhiza esterhuyseniae Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2024/09/14 |
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