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Scientific Name | Agathosma hookeri Sond. |
Higher Classification | Dicotyledons |
Family | RUTACEAE |
Synonyms | Hartogia hookeri Kuntze |
National Status |
Status and Criteria | Vulnerable B1ab(ii,iii,iv)+2ab(ii,iii,iv) |
Assessment Date | 2019/03/25 |
Assessor(s) | L. von Staden |
Justification | This species has a restricted distribution range (EOO 1482 km²) and is known from seven locations. It is declining due to ongoing habitat loss to coastal development. It therefore qualifies as Vulnerable under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | It is found from Cape Peninsula to Hermanus in the Western Cape. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Peninsula Sandstone Fynbos, Hangklip Sand Fynbos, Overberg Sandstone Fynbos, Kogelberg Sandstone Fynbos |
Description | Plants grow in mountain plateaus and sandy flats at the foot of mountains. |
Threats |
| Between Rooi Els and Hermanus, this species is threatened by ongoing habitat loss to coastal development. At least one subpopulation to the east of Kleinmond, known through historical records, has been lost to urban expansion, while a second subpopulation on the coastal flats between Rooi Els and Pringle Bay occurs in an area of ongoing housing development.
Around Red Hill and Llandudno on the Cape Peninsula, plants occurring outside protected areas are threatened by competition from alien invasive plants. |
Population |
It is common on the southern Cape Peninsula, where a large subpopulation is protected within the Table Mountain National Park. Elsewhere it is known from small, scattered subpopulations. A continuing population decline is inferred from ongoing habitat loss.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Agathosma hookeri Sond. | VU B1ab(ii,iii,iv)+2ab(ii,iii,iv) | 2020.1 | | Agathosma hookeri Sond. | Rare | Raimondo et al. (2009) | |
Bibliography |
Bolus Herbarium. The genus Agathosma, specimen data from the Bolus Herbarium Collections database. University of Cape Town, Cape Town. Downloaded on 2007.
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.
Pillans, N.S. 1950. A revision of Agathosma. Journal of South African Botany 16(2):55-177.
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. 2019. Agathosma hookeri Sond. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13 |
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