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Scientific Name | Rhinephyllum pillansii N.E.Br. |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2018/05/21 |
Assessor(s) | L. von Staden & N.A. Helme |
Justification | Rhinephyllum pillansii is a range-restricted, rarely collected and poorly known species. It has an extent of occurrence (EOO) of 6496 km², and it appears to be rare, but the population is not suspected to be declining. It is therefore listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species is endemic to South Africa, and is found from Matjiesfontein to Prince Albert, and southwards to Ladismith. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Koedoesberge-Moordenaars Karoo, Gamka Karoo, Matjiesfontein Shale Renosterveld, Western Little Karoo, Montagu Shale Renosterveld, Central Mountain Shale Renosterveld, Matjiesfontein Quartzite Fynbos |
Description | It occurs on rocky flats with grey quartzitic shale with slight dolerite intrusions. |
Threats |
| A small population of Rhinephyllum pillansii was recently found during an environmental impact study for a solar and wind farm (N.A. Helme pers. comm. 2013). This species' habitat is used mainly for sheep farming, but grazing does not appear to negatively impact this species (N.A. Helme pers. obs.). |
Population |
A localized, but locally common habitat specialist. This species is rarely recorded, but is suspected to be overlooked, rather than rare or threatened. A recent field survey found only a single, small subpopulation of 400-600 plants within a 1 km area within 1600 hectares of vegetation surveyed.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Rhinephyllum pillansii N.E.Br. | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Compton, R.H. 1931. The Flora of the Whitehill District. Transactions of the Royal Society of South Africa 19:269-329.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity 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 |
| von Staden, L. & Helme, N.A. 2018. Rhinephyllum pillansii N.E.Br. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13 |
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