Taxonomy
Scientific Name
Adenandra villosa (P.J.Bergius) Licht. ex Roem. & Schult. subsp. imbricata Strid
Higher Classification
Dicotyledons
Family
RUTACEAE
National Status
Status and Criteria
Vulnerable D2
Assessment Date
2019/03/25
Assessor(s)
L. von Staden
Justification
A rare, localized taxon (EOO 39 km², AOO 20 km²), known from four locations and potentially threatened by competition from alien invasive plants.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Slanghoek Mountains and Du Toit's Kloof Mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Western Coastal Shale Band Vegetation
Description
Rocky slopes in shale bands at high altitudes, 1500-2200 m.
Threats
Alien invasive plants, particularly pines and hakeas, are spreading uncontrolled in the Bains Kloof and Du Toit's Kloof Mountains. At present invasions are largely restricted to lower slopes, but once they reach the summit ridges and peaks where this taxon occurs, it is likely to lead to a rapid increase in risk of extinction.
Population

This taxon is known from four isolated subpopulations within a small area.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Adenandra villosa (P.J.Bergius) Licht. ex Roem. & Schult. subsp. imbricata StridRare Raimondo et al. (2009)
Adenandra villosa (P.J.Bergius) Licht. ex Roem. & Schult. subsp. imbricata StridLower Risk - Least Concern Victor (2002)
Adenandra villosa (P.J.Bergius) Licht. ex Roem. & Schult. subsp. imbricata StridRare 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.


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 villosa (P.J.Bergius) Licht. ex Roem. & Schult. subsp. imbricata Strid. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/08/10

Comment on this assessment Comment on this assessment
Distribution map


Search for images of Adenandra villosa subsp. imbricata on iNaturalist