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Scientific Name | Ruschia duthiae (L.Bolus) Schwantes |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Mesembryanthemum duthiae L.Bolus |
National Status |
Status and Criteria | Vulnerable B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v) |
Assessment Date | 2016/01/13 |
Assessor(s) | N.A. Helme, D. Raimondo & L. von Staden |
Justification | A highly range-restricted (EOO 191 km²), but locally still fairly common species. It is known from fewer than 10 locations and continues to decline due to ongoing habitat loss and degradation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Sedgefield to Nature's Valley. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Tsitsikamma Sandstone Fynbos, Garden Route Shale Fynbos, Knysna Sand Fynbos |
Description | Gentle north-facing sandstone or shale slopes with grassy fynbos. |
Threats |
| Very little of this species' coastal fynbos habitat remains intact, primarily as a result of loss to timber plantations and coastal development. It is threatened by ongoing habitat loss, fragmentation and degradation due to agricultural expansion, coastal development, spread of alien invasive plants around forestry plantations and lack of fire. |
Population |
This species has a very limited distribution range, and very little of its habitat remains intact. It is however still fairly common, especially around Sedgefield. It is somewhat resilient to disturbance, and have been found in the margins of timber plantations.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Ruschia duthiae (L.Bolus) Schwantes | VU B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v) | 2017.1 | | Ruschia duthiae (L.Bolus) Schwantes | EN B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v) | Raimondo et al. (2009) | |
Bibliography |
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.
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 |
| Helme, N.A., Raimondo, D. & von Staden, L. 2016. Ruschia duthiae (L.Bolus) Schwantes. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13 |
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