Scientific Name
Pelargonium ovale (Burm.f.) L'Hér. subsp. hyalinum Hugo
Higher Classification
National Status
Status and Criteria
Vulnerable B1ab(iii,v)+2ab(iii,v)
Assessment Date
L. von Staden & N.A. Helme
Pelargonium ovale subsp. hyalinum is a localized habitat specialist, with an extent of occurrence (EOO) of 1547 km². It occurs at an estimated five to 10 locations within a restricted area, where it is threatened by competition from rapidly spreading alien invasive plants in at least two known locations, but possibly more. It is therefore listed as Vulnerable under criterion B.
South African endemic
Provincial distribution
Western Cape
This subspecies is endemic to South Africa, and is found from the mountains north of Ceres to the Riviersonderend Mountains near Genadendal.
Habitat and Ecology
Major system
Major habitats
Winterhoek Sandstone Fynbos, North Sonderend Sandstone Fynbos, Hawequas Sandstone Fynbos
It occurs in sandstone fynbos on upper slopes.
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.

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
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Pelargonium ovale (Burm.f.) L'Hér. subsp. hyalinum HugoVU B1ab(iii,v)+2ab(iii,v)2020.1
Pelargonium ovale (Burm.f.) L'Hér. subsp. hyalinum HugoRare Raimondo et al. (2009)

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.

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 . Accessed on 2024/06/22

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Distribution map

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