Taxonomy
Scientific Name
Acmadenia kiwanensis I.Williams
Higher Classification
Dicotyledons
Family
RUTACEAE
National Status
Status and Criteria
Critically Endangered B1ab(iii)
Assessment Date
2007/07/03
Assessor(s)
J.E. Victor
Justification
EOO <100 km², one subpopulation at one known location is declining due to overgrazing and inappropriate fire management.
Distribution
Endemism
South African endemic
Provincial distribution
Eastern Cape
Range
Between the Keiskamma and Chalumna Rivers.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Hamburg Dune Thicket
Description
Relict fynbos surrounded by mixed grassland in shallow soil on flat quartzitic sandstone.
Threats
Plants at a single known location are threatened by uncontrolled overgrazing by cattle as well as too frequent fire. This species is a reseeder and likely to be negatively impacted by increasing fire cycles.
Population

One subpopulation is known.


Population trend
Decreasing
Conservation
Not currently conserved in any formally protected area.
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Acmadenia kiwanensis I.WilliamsCR B1ab(iii)Raimondo et al. (2009)
Acmadenia kiwanensis I.WilliamsCR B1B2cVictor (2002)
Acmadenia kiwanensis I.WilliamsInsufficiently Known Hilton-Taylor (1996)
Bibliography

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.


Victor, J.E. and Dold, A.P. 2003. Threatened plants of the Albany Centre of Floristic Endemism, South Africa. South African Journal of Science 99:437-446.


Williams, I. 1978. Studies in the genera of the Diosmeae (Rutaceae): 7. Journal of South African Botany 44(4):329 - 362.


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. 2007. Acmadenia kiwanensis I.Williams. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2021/09/19

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Distribution map

© I. Ebrahim

© I. Ebrahim

© I. Ebrahim


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