Taxonomy
Scientific Name
Gazania splendidissima Mucina, Magee & Boatwr.
Higher Classification
Dicotyledons
Family
ASTERACEAE
National Status
Status and Criteria
Near Threatened B1ab(ii,iii,v)+2ab(ii,iii,v)
Assessment Date
2011/10/19
Assessor(s)
L. von Staden
Justification
Gazania splendidissima has a very restricted range (EOO 335 km²) and is confined to a narrow coastal habitat, but is locally quite abundant. It is currently known from at least 10 locations, but is suspected to occur at at least five more as some parts of the habitat has not yet been explored. It continues to decline due to ongoing habitat loss to mining, and to a lesser degree, coastal development.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape
Range
Port Nolloth to Hondeklipbaai.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Succulent Karoo
Description
Predominantly coastal dunes, but has also been recorded inland on coastal granite.
Threats
The coastal areas between Port Nolloth and Hondeklipbaai are mined for diamonds and other minerals, and much of the coastal vegetation has been transformed and degraded as a result of open-cast mining as well as prospecting activities. There has been some recent expansion of mining particularly around Kleinsee, but overall it is estimated that no more than 20% of G. splendidissima's habitat is currently impacted by mining. Other threats include coastal development - some habitat has been lost to recent developments south of Port Nolloth, but overall coastal development is not causing as significant declines in coastal vegetation as further south along the West Coast. Coastal dunes are also being degraded by recreational 4x4 driving (Magee et al. 2011), but this is likely to have limited impact on the population.
Population

Gazania splendidissima is locally abundant and occur in large subpopulations in suitable coastal habitat. Seed set and recruitment is healthy and young plants and seedlings are abundant (Magee et al. 2011).


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Gazania splendidissima Mucina, Magee & Boatwr.NT B1ab(ii,iii,v)+2ab(ii,iii,v)2012.1
Bibliography

Magee, A.R., Boatwright, J.S. and Mucina, L. 2011. Gazania lanata and G. splendidissima: Two new species of Asteraceae (tribe Arctotideae) from the Greater Capensis, with an updated key for the genus. South African Journal of Botany 77(1):86-93.


Citation
von Staden, L. 2011. Gazania splendidissima Mucina, Magee & Boatwr. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2022/01/26

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Distribution map


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