Taxonomy
Scientific Name
Adenandra gummifera Strid
Higher Classification
Dicotyledons
Family
RUTACEAE
National Status
Status and Criteria
Vulnerable D2
Assessment Date
2019/11/05
Assessor(s)
L. von Staden
Justification
Adenandra gummifera is a localized, but locally abundant species, endemic to a small mountain, where it is potentially threatened by competition from alien invasive plants.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
This species is endemic to the Potberg, a mountain on the eastern boundary of De Hoop Nature Reserve in the Western Cape.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Potberg Sandstone Fynbos, Albertinia Sand Fynbos
Description
Rocky sandstone slopes in fynbos.
Threats
Field observations have noted dense infestations of alien invasive plants in parts of this species' habitat. Efforts have been made to clear alien invasive plants inside De Hoop Nature Reserve, but ongoing clearing is needed to control reinvasions, particularly post-fire, when invasive species re-emerge from persistent soil-stored seedbanks.
Population

Adenandra gummifera is a highly localized species, but locally abundant in its habitat (Strid 1972). No significant population declines have been noted, and the population is assumed to be stable. This species' distribution is however so restricted that it could rapidly increase its risk of extinction, should potential threats become a reality.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Adenandra gummifera StridLeast Concern Raimondo et al. (2009)
Adenandra gummifera StridLower Risk - Least Concern Victor (2002)
Adenandra gummifera StridNot Threatened 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.


Strid, A. 1972. Revision of the genus Adenandra (Rutaceae). Opera Botanica 32:1-112.


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
von Staden, L. 2019. Adenandra gummifera Strid. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/10/20

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Distribution map


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