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Scientific Name | Antimima ivori (N.E.Br.) H.E.K.Hartmann |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Mesembryanthemum ivori N.E.Br., Ruschia ivori (N.E.Br.) Schwantes |
National Status |
Status and Criteria | Rare |
Assessment Date | 2019/10/21 |
Assessor(s) | D. Raimondo |
Justification | Antimima ivori is a rare and localized species, with an extent of occurrence (EOO) of 260 km². It is known from only three localities, but is likely to be under-collected. It has no severe threats and is therefore not suspected to be in danger of extinction. It is therefore listed under the IUCN 3.1. criteria as Least Concern but is nationally recognised as Rare. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | This species is endemic to the Roggeveld Escarpment in the Northern Cape of South Africa, where it occurs from Sutherland to Fraserburg. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Roggeveld Karoo, Western Upper Karoo, Roggeveld Shale Renosterveld |
Description | It is localized to crevices in exposed sandstone. |
Threats |
| Vegetation within this species' range is undergoing ongoing degradation due to overgrazing, as well as severe drought that has been affecting this area since 2014. This species is however not suspected to be impacted by these pressures as its specific microhabitat may provide it shelter from the effects of grazing and drought. |
Population |
This species is known from only a few collections. One recent field observation noted that the subpopulation consists of fewer than 100 plants. There is not enough data to estimate the population size, but based on this observation it is suspected to be a rare habitat specialist. The population is not suspected to be declining, but field monitoring is needed to confirm this.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Antimima ivori (N.E.Br.) H.E.K.Hartmann | Rare | 2020.1 | | Antimima ivori (N.E.Br.) H.E.K.Hartmann | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Magee, A.R. and Boatwright, J.S. (eds). In prep. Plants of the Karoo: A Conspectus of the Nama-Karoo and Adjacent Summer-Rainfall Regions of the Northern and Western Cape Provinces. Strelitzia.
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. 2019. Antimima ivori (N.E.Br.) H.E.K.Hartmann. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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