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Scientific Name | Thesium hirtum (Sond.) Zhigila, Verboom & Muasya |
Higher Classification | Dicotyledons |
Family | SANTALACEAE |
Synonyms | Thesidium globosum (A.DC.) A.DC., Thesidium hirtum Sond. (superfluous name for Thesium globosum A.DC.), Thesidium strigulosum (A.DC.) A.DC., Thesium globosum A.DC., Thesium strigulosum A.DC. |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2023/12/13 |
Assessor(s) | L. von Staden |
Justification | This species is a rare and range-restricted species with an extent of occurrence (EOO) of 2646 km². It is potentially threatened by competition from alien invasive plants, and requires monitoring. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | It has a disjunct distribution in the Western Cape, where it occurs on the Cape Peninsula and in the mountains around Elim. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Peninsula Sandstone Fynbos, Overberg Sandstone Fynbos |
Description | It occurs on lower sandstone slopes near the coast. |
Threats |
| Historically, this species has lost habitat to urban expansion on the Cape Peninsula. Most of its remaining habitat is however now protected, and habitat loss is no longer a significant threat. In the mountains inland of Pearly Beach it is threatened by competition from alien invasive plants. The Cape Peninsula was formerly infested with alien invasive plants, but there were extensive clearing efforts in the early 2000s. Reinvasion however remains a potential threat, as invasive species are able to regenerate from soil-stored seed banks. |
Population |
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Thesium strigulosum A.DC. | Least Concern | 2015.1 | | Thesidium hirtum Sond. | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Forest, F. and Manning, J.C. 2013. SANTALACEAE: The minor genera Kunkeliella and Thesidium included in Thesium. Bothalia 43(2):214-216.
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.
Hill, A.W. 1915. Santalaceae. In: W.T. Thiselton-Dyer (ed). Flora Capensis V Section II (Thymeleaceae-Ceratophylleae):135-212. L. Reeve & Co., Ltd., Ashford.
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.
Zhigila, D.A., Verboom, G.A., Stirton, C.H. and Muasya, A.M. 2019. A taxonofmic revision of Thesiumsection Hagnothesium(Santalaceae) and description of a new species, T. quartzicolum. South African Journal of Botany 124:280-303.
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Citation |
| von Staden, L. 2023. Thesium hirtum (Sond.) Zhigila, Verboom & Muasya. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09 |
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