Taxonomy
Scientific Name
Ficinia overbergensis Muasya & C.H.Stirt.
Higher Classification
Monocotyledons
Family
CYPERACEAE
National Status
Status and Criteria
Near Threatened B1ab(iii,v)+2ab(iii,v)
Assessment Date
2014/01/20
Assessor(s)
O.E. Curtis & L. von Staden
Justification
A range-restricted (EOO 1133 km²), but still relatively common species, estimated to occur at between 20 and 25 locations, and threatened by ongoing habitat loss and degradation, predominantly due to overgrazing and agricultural expansion.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Overberg between Swellendam, Bredasdorp and Heidelberg.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Fynbos
Description
Quartz-silcrete patches, as well as silcrete outcrops where quartz is not strongly exposed.
Threats
Less than 6% of Overberg Shale Renosterveld remains after extensive loss to expanding crop cultivation (Curtis et al. 2013). Ficinia overbergensis occurs in a specialized micro-habitat within this broader vegetation type, and it is not possible to estimate how much of this habitat type has been lost. Although this species is still quite common, most remaining subpopulations are found on small fragments of less than 500 ha. Small fragments of natural vegetation are often overstocked, and habitat degradation due to overgrazing continues.
Population

In spite of extensive habitat loss, Ficinia overbergensis is still quite common, but subpopulations are localized and relatively small, with fewer than 100 tufts recorded per site (Curtis et al. 2013).


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Ficinia overbergensis Muasya & C.H.Stirt.NT B1ab(iii,v)+2ab(iii,v)2014.1
Bibliography

Curtis, O.E., Stirton, C.H. and Muasya, A.M. 2013. A conservation and floristic assessment of poorly known species rich quartz-silcrete outcrops within Rûens Shale Renosterveld (Overberg, Western Cape), with taxonomic descriptions of five new species. South African Journal of Botany 87:99-111.


Citation
Curtis, O.E. & von Staden, L. 2014. Ficinia overbergensis Muasya & C.H.Stirt. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2024/02/26

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Distribution map

© O.E. Curtis

© O.E. Curtis

© O.E. Curtis

© O.E. Curtis


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