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Scientific Name | Protea revoluta R.Br. |
Higher Classification | Dicotyledons |
Family | PROTEACEAE |
Common Names | Rolled-leaf Sugarbush (e) |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2019/06/12 |
Assessor(s) | A.G. Rebelo, H. Mtshali & L. von Staden |
Justification | Protea revoluta has a restricted range and has an extent of occurrence (EOO) of 4129 km², and area of occupancy (AOO) of 496 km², and although impact by a few threats in a small portion of its range, it is still locally abundant and not yet in danger of extinction. It is therefore assessed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species occurs from the Cederberg to Witteberg mountains in the Western Cape Province of South Africa. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Cederberg Sandstone Fynbos, Matjiesfontein Quartzite Fynbos, Swartruggens Quartzite Fynbos, Matjiesfontein Shale Fynbos, Northern Inland Shale Band Vegetation |
Description | It grows in montane restioveld, 900-1600 m. Mature individuals are killed by fires, and only seeds survive. Wind-dispersed seeds are stored in fire-resistant inflorescences, and released after fires. It is pollinated by birds and insects. |
Threats |
| At least 4% of this species' habitat has been transformed in the past, mainly due to agriculture. This species is potentially vulnerable to too frequent fires and habitat loss to agriculture. Climate change models predicted that it could decline by 30% by 2025 (Bomhard et al. 2005), but no such drastic population reductions have yet been observed. |
Population |
This species is locally abundant as scattered plants. Despite some localised threats, the overall population is not suspected to be declining.
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Population trend | Stable |
Notes |
| Citizen scientists who surveyed this species during the Protea Atlas Project conducted between 1992 and 2002, had problems distinguishing this species with morphs of Protea laevis. More taxonomic work on the delimitation of these two species should be undertaken. |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Protea revoluta R.Br. | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Bomhard, B., Richardson, D.M., Donaldson, J.S., Hughes, G.O., Midgley, G.F., Raimondo, D.C., Rebelo, A.G., Rouget, M. and Thuiller, W. 2005. Potential impacts of future land use and climate change on the Red List status of the Proteaceae in the Cape Floristic Region, South Africa. Global Change Biology 11(9):1452-1468.
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.
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.
Rebelo, T. 2001. Sasol Proteas: A field guide to the proteas of southern Africa. (2nd ed.). Fernwood Press, Vlaeberg, Cape Town.
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Citation |
| Rebelo, A.G., Mtshali, H. & von Staden, L. 2019. Protea revoluta R.Br. National Assessment: Red List of South African Plants version . Accessed on 2025/01/18 |
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