Taxonomy
Scientific Name
Pelargonium ovale (Burm.f.) L'Hér. subsp. hyalinum Hugo
Higher Classification
Dicotyledons
Family
GERANIACEAE
National Status
Status and Criteria
Vulnerable B1ab(iii,v)+2ab(iii,v)
Assessment Date
2018/05/28
Assessor(s)
L. von Staden & N.A. Helme
Justification
A localized habitat specialist, occurring at an estimated five to 10 locations within a restricted area (EOO 1547 km²), where it is threatened by competition from rapidly spreading alien invasive plants in at least two known locations, but possibly more.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Mountains north of Ceres to the Riviersonderend Mountains near Genadendal.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Winterhoek Sandstone Fynbos, North Sonderend Sandstone Fynbos, Hawequas Sandstone Fynbos
Description
Sandstone fynbos on upper slopes.
Threats
Alien invasive plants are present in this subspecies' habitat between Wemmershoek Peak and Franschhoek Pass, as well as on the Riviersonderend Mountains above Genadendal, and have been spreading rapidly in the past 10-15 years.
Population

This subspecies is currently known from four locations, all from fairly accessible areas. It is likely that more subpopulations exist on the higher mountain peaks between the Wemmershoek Mountains and Ceres, where it is also highly likely to be threatened by competition from alien invasive plants.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Pelargonium ovale (Burm.f.) L'Hér. subsp. hyalinum HugoRare Raimondo et al. (2009)
Bibliography

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.


Van der Walt, J.J.A. and Van Zyl, L. 1988. A taxonomic revision of Pelargonium section Campylia (Geraniaceae). South African Journal of Botany 54(2):145-171.


Van der Walt, J.J.A. and Vorster, P.J. 1977. Pelargoniums of southern Africa. (Vol. I). Purnell, Cape Town.


Citation
von Staden, L. & Helme, N.A. 2018. Pelargonium ovale (Burm.f.) L'Hér. subsp. hyalinum Hugo. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/10/28

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Distribution map


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