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Scientific Name | Annesorhiza bracteosa Magee |
Higher Classification | Dicotyledons |
Family | APIACEAE |
National Status |
Status and Criteria | Endangered B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) |
Assessment Date | 2012/10/08 |
Assessor(s) | L. von Staden |
Justification | A highly range-restricted (EOO <120 km²), rare species, estimated to occur at fewer than five locations and declining due to ongoing habitat loss to crop cultivation and competition from alien invasive plants. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Elim. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Elim Ferricrete Fynbos |
Description | Unknown, possibly damp alluvial flats. |
Threats |
| A. bracteosa is threatened by extensive, ongoing habitat loss to crop cultivation to the north of Elim. South of Elim towards the coast, expanding cultivation as well as dense alien invasive plant infestations are likely to threaten surviving plants. |
Population |
This species is known from only two collections, and was last collected in 1958. Recent searches were unsuccessful (Magee et al. 2011). It flowers late in the season (February to March), and was only recently recognized as a distinct species through revisionary studies of this previously poorly known group, which means that it has quite likely been overlooked. However, synflorescences can be up to 1 m tall (Magee et al. 2011), and therefore this is not an inconspicuous species, and the failure to find living subpopulations is concerning. Much of the area where this very localized species has been recorded is transformed or invaded by alien plants, and it is likely to be rare and in danger of extinction. Urgent surveys are needed to determine whether this species is not already extinct.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Annesorhiza bracteosa Magee | EN B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) | 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.
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Citation |
| von Staden, L. 2012. Annesorhiza bracteosa Magee. National Assessment: Red List of South African Plants version . Accessed on 2025/05/11 |
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