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Scientific Name | Geissorhiza erubescens Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Rare |
Assessment Date | 2021/08/23 |
Assessor(s) | D. Raimondo, B. Mohamed, D.A. Kamundi & T. Patel |
Justification | This highly range-restricted northern Cederberg endemic has an extent of occurrence (EOO) and area of occupancy (AOO) of 8 km². With no known threats, it qualifies under the IUCN category of Least Concern, but it is nationally listed as Rare. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species is only known from Pakhuis Pass in the Pakhuis Mountains of Western Cape province, South Africa. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Northern Inland Shale Band Vegetation |
Description | It occurs on east- and south-facing slopes on shale bands, especially after fires. |
Threats |
| As of the latest assessment, there are no known threats to this species. |
Population |
This species is locally common in its habitat and is known from two subpopulations. An observation on iNaturalist in 2019 noted that one subpopulation had 200 plants in 0.1 hectares. However, there is still a need for a thorough survey of the entire population to accurately estimate the overall number of mature individuals.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Geissorhiza erubescens Goldblatt | Rare | Raimondo et al. (2009) | |
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.
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., Mohamed, B., Kamundi, D.A. & Patel, T. 2021. Geissorhiza erubescens Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2024/09/14 |
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