Taxonomy
Scientific Name
Acmadenia gracilis Dummer
Higher Classification
Dicotyledons
Family
RUTACEAE
National Status
Status and Criteria
Vulnerable B1ab(ii,iii,v)+2ab(ii,iii,v)
Assessment Date
2012/07/11
Assessor(s)
J.E. Victor, J.H. Vlok, D. Raimondo & S.L. Hutchinson
Justification
EOO 885 km², seven known locations are declining due to invasive alien plants and too frequent fires.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Langeberg, Outeniqua and Kammanassie mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
South Kammanassie Sandstone Fynbos, South Outeniqua Sandstone Fynbos, North Outeniqua Sandstone Fynbos, South Langeberg Sandstone Fynbos
Description
Mountain summit and north-facing slopes close to wet areas.
Threats
Three subpopulations experience ongoing threat from invasive alien plants and one subpopulation is threatened by too frequent fires. Habitat loss to pine plantations was a threat in the past.
Population

Three out of the eight known subpopulations have data indicating sizes of <50, <210 and 10 000 individuals.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Acmadenia gracilis DummerVU D2Raimondo et al. (2009)
Acmadenia gracilis DummerVU D2Victor (2002)
Acmadenia gracilis DummerVulnerable Hilton-Taylor (1996)
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.


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.


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.


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
Victor, J.E., Vlok, J.H., Raimondo, D. & Hutchinson, S.L. 2012. Acmadenia gracilis Dummer. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2021/09/26

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Distribution map

© D. Underwood

© J.H. Vlok/A.L. Schutte-Vlok

© J.H. Vlok/A.L. Schutte-Vlok

© Outramps


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