Taxonomy
Scientific Name
Acmadenia nivenii Sond.
Higher Classification
Dicotyledons
Family
RUTACEAE
National Status
Status and Criteria
Vulnerable B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v)
Assessment Date
2012/08/06
Assessor(s)
J.H. Vlok, D. Raimondo & S.L. Hutchinson
Justification
EOO and AOO <195 km², between six and eight known locations continue to decline due to incorrect fire management, alien plant invasion, harvesting activities and habitat loss to agriculture.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Langeberg Mountains between Tradouw Pass and Garcia's Pass.
Habitat and Ecology
Major system
Terrestrial
Major habitats
South Langeberg Sandstone Fynbos, North Langeberg Sandstone Fynbos
Description
Lower northern slopes.
Threats
Incorrect fire management, the spread of invasive alien plants (mainly hakea and pine) and habitat loss to protea and honeybush tea farming are all ongoing threats (J. Vlok pers. comm. 2006).
Population
Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Acmadenia nivenii Sond.VU B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v)Raimondo et al. (2009)
Acmadenia nivenii Sond.Rare Hilton-Taylor (1996)
Acmadenia nivenii Sond.Rare 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.


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.


Vlok, J. and Schutte-Vlok, A.L. 2010. Plants of the Klein Karoo. Umdaus Press, Hatfield.


Williams, I. 1982. Studies in the genera of the Diosmeae (Rutaceae): 13. A revision of the genus Acmadenia. Journal of South African Botany 48(2):169-240.


Citation
Vlok, J.H., Raimondo, D. & Hutchinson, S.L. 2012. Acmadenia nivenii Sond. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2021/09/19

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Distribution map

© J.H. Vlok/A.L. Schutte-Vlok

© J.H. Vlok/A.L. Schutte-Vlok


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