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Scientific Name | Bergeranthus nanus A.P.Dold & S.A.Hammer |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
National Status |
Status and Criteria | Near Threatened D2 |
Assessment Date | 2019/10/21 |
Assessor(s) | A.P. Dold, D. Raimondo & L. von Staden |
Justification | Bergeranthus nanus is a range-restricted species with an extent of occurrence (E00) of 1642 km². It is known from seven locations and is potentially threatened by overgrazing. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape |
Range | This species is endemic to the eastern Great Escarpment between Graaff-Reinet and Cradock and extending to the Great Winterberg. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Upper Karoo Hardeveld, Karoo Escarpment Grassland, Amathole Mistbelt Grassland, Amathole Montane Grassland |
Description | It occurs in exposed intrusive dolerite sills in nama karoo and montane grassland, 1173-1800 m. |
Threats |
| This species is potentially threatened by livestock grazing and trampling. |
Population |
It was previously a poorly known species, but extensive field surveys of the mountains around Graaff-Reinet and the Great Winterberg Mountains from 2007-2012 encountered a number of previously unrecorded subpopulations. It is now know from seven distinct subpopulations. The population is not suspected to be declining, but may be impacted if grazing pressure increases.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Bergeranthus nanus A.P.Dold & S.A.Hammer | VU D2 | Raimondo et al. (2009) | | Bergeranthus nanus A.P.Dold & S.A.Hammer | Vulnerable | Hilton-Taylor (1996) | |
Bibliography |
Clark, V.R., Barker, N.P. and Mucina, L. 2009. The Sneeuberg: A new centre of floristic endemism on the Great Escarpment, South Africa. South African Journal of Botany 75(2):196-238.
Dold, A.P., Hammer, S.A. and Barker, N.P. 2005. Leaves of grass: A taxonomic revision of the genus Bergeranthus Schwantes (Aizoaceae). Haseltonia 11:78-97.
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 |
| Dold, A.P., Raimondo, D. & von Staden, L. 2019. Bergeranthus nanus A.P.Dold & S.A.Hammer. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2023/12/04 |
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