Taxonomy
Scientific Name
Annesorhiza radiata Magee
Higher Classification
Dicotyledons
Family
APIACEAE
National Status
Status and Criteria
Endangered B1ab(iii)+2ab(iii)
Assessment Date
2012/10/09
Assessor(s)
L. von Staden
Justification
EOO <30 km², an estimated fewer than five locations continue to decline due to ongoing habitat loss to urban expansion.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Worcester.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Robertson Karoo
Description
Tillite derived clay soils on lower slopes and flats.
Threats
This species is currently known from a single subpopulation within a protected area, however, it quite possibly has a wider distribution within lowland Robertson Karoo around the town of Worcester, where it is threatened by ongoing habitat loss to urban expansion.
Population
Population trend
Decreasing
Conservation
Protected within the Karoo National Botanical Garden.
Notes
This species flowers late (March to April) and is likely to be overlooked in surveys.
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Annesorhiza radiata MageeEN B1ab(iii)+2ab(iii)2013.1
Bibliography

Magee, A.R., Van Wyk, B.E., Tilney, P.M. and Vessio, N. 2011. A taxonomic revision of the Annesorhiza triternata group (Apiaceae, Apioideae): the transfer of Peucedanum triternatum and P. filicaule and the description of five new species. Systematic Botany 36(2):508-519.


Citation
von Staden, L. 2012. Annesorhiza radiata Magee. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2021/09/26

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Distribution map


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