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Scientific Name | Reyemia nemesioides (Diels) Hilliard |
Higher Classification | Dicotyledons |
Family | SCROPHULARIACEAE |
Synonyms | Zaluzianskya nemesioides Diels |
National Status |
Status and Criteria | Vulnerable B1ab(iii) |
Assessment Date | 2019/11/11 |
Assessor(s) | D. Raimondo |
Justification | A restricted endemic with an extent of occurrence of 3068 km², known from only seven locations and experiencing ongoing decline in habitat quality as a result of livestock overgrazing and severe drought. This species therefore qualifies for listing as Vulnerable under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Hantamsberg to Roggeveld to Nuweveld Mountains. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Fynbos, Succulent Karoo |
Description | Dolerite hills. |
Threats |
| The western part of the Karoo where this species occurs, has becoming increasingly arid over the past 20 years with a severe drought impacting this area since 2016. Ongoing aridification is predicted by climate change models. Surveys of western Karoo between 2016 and 2018 noted that this vegetation is extremely degraded and highly overgrazed. |
Population |
Despite extensive surveys within this species range between 2005 and 2015 as part of the Greater Escarpment Biodiversity Project and the Karoo BioGaps Project this species has not been recorded, this is an indication that it is likely declining.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Reyemia nemesioides (Diels) Hilliard | Least Concern | Raimondo et al. (2009) | | Reyemia nemesioides (Diels) Hilliard | Not Threatened | Hilton-Taylor (1996) | | Zaluzianskya nemesioides Diels | Uncertain | Hall et al. (1980) | |
Bibliography |
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, 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.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
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Citation |
| Raimondo, D. 2019. Reyemia nemesioides (Diels) Hilliard. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2023/11/28 |
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