|
Scientific Name | Pelargonium heterophyllum Jacq. |
Higher Classification | Dicotyledons |
Family | GERANIACEAE |
Synonyms | Pelargonium cavanillesii Knuth, Pelargonium ciliatum L'Hér., Pelargonium hirtum Willd., Pelargonium longifolium (Burm.f.) Jacq. var. ciliatum (L'Her.) Harv., Pelargonium oxalidifolium (Andrews) Pers., Pelargonium pilosum (Cav.) Steud. |
National Status |
Status and Criteria | Critically Endangered A2c; B1ab(ii,iii,v)+2ab(ii,iii,v) |
Assessment Date | 2007/10/02 |
Assessor(s) | N.A. Helme & D. Raimondo |
Justification | A population reduction of >80% is estimated based on habitat loss to wheat cultivation, vineyards and urban expansion in the past 90 years (generation length 30-40 years) and a single location remains, EOO and AOO <10 km². This species continues to decline due to ongoing habitat loss. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Darling. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Swartland Granite Renosterveld, Swartland Silcrete Renosterveld |
Description | Renosterveld on clay flats or low hills. |
Threats |
| A range-restricted species that has lost more than 80% of its habitat to crop cultivation, and a single subpopulation is known to remain on the outskirts of Darling where it is threatened by competition from alien invasive plants and a lack of fire. Also potentially threatened by urban expansion. |
Population |
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Pelargonium heterophyllum Jacq. | CR A2c; B1ab(ii,iii,v)+2ab(ii,iii,v) | Raimondo et al. (2009) | |
Bibliography |
Craib, C. 2001. Geophytic Pelargoniums. Umdaus Press, Hatfield.
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 Unpublished Ph.D. Thesis, University of Stellenbosch, Stellenbosch.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.
|
Citation |
| Helme, N.A. & Raimondo, D. 2007. Pelargonium heterophyllum Jacq. National Assessment: Red List of South African Plants version . Accessed on 2025/07/01 |
Comment on this assessment
