Taxonomy
Scientific Name
Agathosma longicornu Pillans
Higher Classification
Dicotyledons
Family
RUTACEAE
National Status
Status and Criteria
Rare
Assessment Date
2018/05/28
Assessor(s)
T. Trinder-Smith, D. Raimondo & L. von Staden
Justification
Agathosma longicornu is a rare, range-restricted species with an extent of occurrence (EOO) of 331 km². It is not threatened. It is therefore listed under the IUCN 3.1. criteria as Least Concern but is nationally recognised as Rare.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
This species is endemic to South Africa, and is found in Central and southern Cederberg.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Cederberg Sandstone Fynbos, Olifants Sandstone Fynbos
Description
It occurs in shallow, red gravel on gentle west-facing slopes.
Threats
This species' habitat is well-protected and it has no threats.
Population

Plants occur as scattered clumps of a few individuals each.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Agathosma longicornu PillansRare Raimondo et al. (2009)
Agathosma longicornu PillansLower Risk - Least Concern Victor (2002)
Agathosma longicornu PillansNot Threatened Hilton-Taylor (1996)
Agathosma longicornu PillansRare Hall et al. (1980)
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.


Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.


Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.


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.


Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.


Citation
Trinder-Smith, T., Raimondo, D. & von Staden, L. 2018. Agathosma longicornu Pillans. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13

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Distribution map


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