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Scientific Name | Erica atrovinosa E.G.H.Oliv. |
Higher Classification | Dicotyledons |
Family | ERICACEAE |
National Status |
Status and Criteria | Vulnerable D1+2 |
Assessment Date | 2012/08/09 |
Assessor(s) | E.G.H. Oliver, R.C. Turner & L. von Staden |
Justification | Erica atrovinosa is a very localized species (EOO 11 km²), restricted to three peaks in the western Hex River Mountains, where it occurs in small, scattered clumps, with the total population size estimated to number fewer than 1000 mature individuals. In addition, as a reseeder it is potentially threatened by too frequent fire. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Hex River Mountains, from Waaihoek to Milner Peak. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | North Hex Sandstone Fynbos |
Description | High altitude upper north-facing slopes on sandstone ridges and shale bands. |
Threats |
| This reseeder is potentially threatened by too frequent fires - Waaihoek and Milner peaks have burnt twice within eight years. This species is poorly branched, and produce few flowers, with the result that seed set is likely to be low, making it particularly vulnerable to too frequent fires. |
Population |
This species occurs as small, scattered clumps of plants on three summit peaks in the western Hex River Mountains. The largest consists of about 300 plants below Milner Ridge Peak, while elsewhere, small clumps of 50 or fewer plants are known to occur (Oliver 1967, unpublished ISEP data 1994). The total population size is estimated to be fewer than 1000 mature individuals.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Erica atrovinosa E.G.H.Oliv. | EN D | 2012.1 | | Erica atrovinosa E.G.H.Oliv. | EN D | Raimondo et al. (2009) | | Erica atrovinosa E.G.H.Oliv. | Endangered | Hilton-Taylor (1996) | | Erica atrovinosa E.G.H.Oliv. | Rare | Hall et al. (1980) | |
Bibliography |
Baker, H.A. and Oliver, E.G.H. 1967. Ericas in southern Africa. Purnell, Cape Town & Johannesburg.
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.
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.
Oliver, E.G.H. 1967. Three new species of Erica. Journal of South African Botany 33(3):197-204.
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.
Schumann, D., Kirsten, G. and Oliver, E.G.H. 1992. Ericas of South Africa. Fernwood Press, Cape Town.
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Citation |
| Oliver, E.G.H., Turner, R.C. & von Staden, L. 2012. Erica atrovinosa E.G.H.Oliv. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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