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Scientific Name | Pelargonium asarifolium (Sweet) Loudon |
Higher Classification | Dicotyledons |
Family | GERANIACEAE |
Synonyms | Pelargonium arachnoideum R.Knuth |
National Status |
Status and Criteria | Vulnerable B1ab(i,ii,iii,iv,v) |
Assessment Date | 2013/01/28 |
Assessor(s) | N.A. Helme & L. von Staden |
Justification | EOO 6568 km², between seven and 20 small, isolated subpopulations continue to decline due to ongoing habitat loss and degradation as well as competition from alien invasive plants. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Piketberg and Porterville to Worcester and Sir Lowry's Pass. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Swartland Shale Renosterveld, Breede Shale Renosterveld, Ceres Shale Renosterveld, Swartland Granite Renosterveld, Swartland Silcrete Renosterveld, Piketberg Sandstone Fynbos, Hawequas Sandstone Fynbos, Cape Winelands Shale Fynbos, Breede Shale Fynbos, Boland Granite Fynbos, Northern Inland Shale Band Vegetation, Lourensford Alluvium Fynbos, Swartland Alluvium Fynbos, Breede Alluvium Fynbos |
Description | Loamy alluvial sands, and clay flats and lower slopes. |
Threats |
| Less than 20% of this species' lowland habitat remains, after extensive loss to vineyards in the Breede River Valley between Tulbagh and Worcester as well as the Berg River Valley between Franschhoek and Paarl, as well as urban expansion around Stellenbosch, Durbanville and Kuilsrivier, and grain cultivation in the Swartland. Remaining subpopulations occur on small, isolated remnants of natural vegetation and continue to decline due to competition from alien invasive plants and ongoing habitat loss and degradation. |
Population |
This species has become extremely rare due to more than 80% habitat loss, and subpopulations are confined to small, isolated remnants of natural vegetation.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Pelargonium asarifolium (Sweet) Loudon | Least Concern | 2012.1 | | Pelargonium asarifolium (Sweet) Loudon | Least Concern | 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.
Marais, E.M. 1994. Taxonomic studies in Pelargonium, section Hoarea (Geraniaceae). Unpublished Ph.D. Thesis, University of Stellenbosch, Stellenbosch.
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. & von Staden, L. 2013. Pelargonium asarifolium (Sweet) Loudon. National Assessment: Red List of South African Plants version . Accessed on 2025/05/22 |
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