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Scientific Name | Geissorhiza nigromontana Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Rare |
Assessment Date | 2023/06/11 |
Assessor(s) | P. Goldblatt, K. Naidoo, R.C. Turner & T. Patel |
Justification | This habitat specialist has an extent of occurrence (EOO) of 80 km² and an area of occupancy (AOO) of 20 km². It is known from three subpopulations that all occur within protected areas. It is therefore not threatened and is listed under the IUCN 3.1 criteria as Least Concern. Nationally, it is categorised as Rare. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | An endemic to Western Cape Province of South Africa which occurs in the Groot Swartberg Mountains. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | South Swartberg Sandstone Fynbos |
Description | It is found along streams in shade at around 1800 m elevation, flowering near the end of summer. |
Threats |
| This species has a slight future potential threat from the combined effects of frequent fires and drought. |
Population |
The population has a stable trend and is known from three subpopulations.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Geissorhiza nigromontana Goldblatt | Rare | Raimondo et al. (2009) | | Geissorhiza nigromontana Goldblatt | 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.
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.
Vlok, J. and Schutte-Vlok, A.L. 2010. Plants of the Klein Karoo. Umdaus Press, Hatfield.
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Citation |
| Goldblatt, P., Naidoo, K., Turner, R.C. & Patel, T. 2023. Geissorhiza nigromontana Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2024/09/14 |
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