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Scientific Name | Chrysocoma strigosa Ehr.Bayer |
Higher Classification | Dicotyledons |
Family | ASTERACEAE |
National Status |
Status and Criteria | Vulnerable B1ab(i,ii,iii,iv,v) |
Assessment Date | 2018/06/06 |
Assessor(s) | L. von Staden |
Justification | Chrysocoma strigosa is a range-restricted limestone endemic, with an extent of occurrence (EOO) of 2487 km². It is known from nine locations, and is declining due to competition from alien invasive plants and habitat loss to coastal development. It is therefore listed as Vulnerable under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species is endemic to South Africa, and is localized to the southern Cape coast, where it is found from Cape Agulhas to Stilbaai. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Canca Limestone Fynbos, De Hoop Limestone Fynbos, Overberg Dune Strandveld, Agulhas Limestone Fynbos, Hartenbos Dune Thicket |
Description | It occurs on coastal limestone flats. |
Threats |
| Chrysocoma strigosa is threatened by competition from dense infestations of alien invasive plants across its range. Clearing efforts are ongoing. It is also threatened by habitat loss to coastal development around Struisbaai, Arniston and Stilbaai. A small proportion of limestone fynbos between De Hoop and Stilbaai has been ploughed for crops, but the habitat is only marginally suited to crop cultivation. Veld management for thatch harvesting is also causing degradation in some areas, but the impact of thatch harvesting on this species is not known. |
Population |
The size and structure of the population is not known, but according to herbarium specimen notes, it can be locally common. A continuing decline is inferred from ongoing habitat loss and degradation.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Chrysocoma strigosa Ehr.Bayer | VU B1ab(i,ii,iii,iv,v) | 2020.1 | | Chrysocoma strigosa Ehr.Bayer | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Bayer, E. 1981. Revision der Gattung Chrysocoma L. (Asteraceae-Astereae). Mitteilungen der Botanischen Staatssammlung München 17:259-392.
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.
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.
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Citation |
| von Staden, L. 2018. Chrysocoma strigosa Ehr.Bayer. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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