Taxonomy
Scientific Name
Agathosma subteretifolia Pillans
Higher Classification
Dicotyledons
Family
RUTACEAE
National Status
Status and Criteria
Rare
Assessment Date
2020/01/20
Assessor(s)
T. Trinder-Smith, D. Raimondo & L. von Staden
Justification
Agathosma subteretifolia is a rare, range-restricted species with an extent of occurrence (EOO) of 48 km². It is poorly known, but is not suspected to be in danger of extinction.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
This species is endemic to a small area in the Koo Valley west of Montagu in the Western Cape.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Montagu Shale Renosterveld, Montagu Shale Fynbos
Description
It occurs near streams on shale slopes with fynbos and renosterveld.
Threats
While the alluvial plain of the Koo Valley is intensively cultivated, the mountain slopes above appear to have no significant impacts. Field surveys are however needed to confirm the condition of the habitat.
Population

Agathosma subteretifolia is a rare and poorly known species, last recorded in the wild in 1980. It is possibly overlooked, rather than threatened. Field surveys are needed to relocate it in the wild.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Agathosma subteretifolia PillansRare Raimondo et al. (2009)
Agathosma subteretifolia PillansVU D2Victor (2002)
Agathosma subteretifolia PillansVulnerable Hilton-Taylor (1996)
Agathosma subteretifolia PillansIndeterminate Hall et al. (1980)
Bibliography

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. 2020. Agathosma subteretifolia Pillans. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2022/01/19

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Distribution map


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