Senecio pillansii

Taxonomy
Scientific Name
Senecio pillansii Levyns
Higher Classification
Dicotyledons
Family
ASTERACEAE
National Status
Status and Criteria
Near Threatened B1ab(i,ii,iii,iv,v)
Assessment Date
2016/01/29
Assessor(s)
L. von Staden
Justification
EOO 10 316 km², and known from 10 to 15 locations. It is declining due to ongoing habitat loss to coastal development and competition from alien invasive plants.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Cape Peninsula to Stilbaai.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Fynbos
Description
Coastal slopes, usually in ecotones between limestone and shale.
Threats
Threatened by ongoing habitat loss to urban expansion on the Cape Peninsula. On the Agulhas Plain and around Stilbaai it is declining due to ongoing habitat loss to coastal development. Large areas of its habitat on the Agulhas Plain is also densely infested by unmanaged alien invasive plants, which are outcompeting native species.
Population

This species has a disjunct distribution along the Western Cape coast. It is known historically from the Cape Peninsula, but has not been recorded on the Peninsula since 1938, and is possibly locally extinct due to habitat loss to urban expansion on lower coastal slopes. It is fairly common on the Agulhas Plain between Gansbaai and De Hoop, but is not known from the coastal areas between Cape Town and Gansbaai. It occurs sporadically along the coast further east as far as Stilbaai. The population is declining across its range due to ongoing habitat loss and degradation.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Senecio pillansii LevynsThreatened Raimondo et al. (2009)
Bibliography

Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.


Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity 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.


Citation
von Staden, L. 2016. Senecio pillansii Levyns. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/06/27

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Distribution map


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