Senecio cadiscus B.Nord. & Pelser

Taxonomy
Scientific Name
Senecio cadiscus B.Nord. & Pelser
Higher Classification
Dicotyledons
Family
ASTERACEAE
Synonyms
Cadiscus aquaticus E.Mey. ex DC.
National Status
Status and Criteria
CR B2ab(i,ii,iii,iv,v)
Assessment Date
2007/07/18
Assessor(s)
N.A. Helme & D. Raimondo
Justification
AOO<2 km², this species occurs as small, fragmented subpopulations. It is declining as a result of livestock overgrazing and trampling, infilling of wetlands, alien plant invasion and eutrophication. It has declined by over 70% in the past 100 years.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Eendekuil to Tygerberg.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Fynbos
Description
Vernal pools on shale. Juveniles submerged, adults floating, emergent or temporarily terrestrial.
Threats
Habitat loss, Pollution (affecting habitat and/or species), Invasive Alien Species (direct effects), Habitat degradation
Population
Population trend
Decreasing
Assessment History
Date
Taxon assessed
Status and Criteria
Citation/Red List version
2009Cadiscus aquaticus E.Mey. ex DC.CR B2ab(i,ii,iii,iv,v)Raimondo et al. (2009)
1996Cadiscus aquaticus E.Mey. ex DC.E Hilton-Taylor (1996)
Bibliography

Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical 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
Helme, N.A. & Raimondo, D. 2007. Senecio cadiscus B.Nord. & Pelser. National Assessment: Red List of South African Plants version 2014.1. Accessed on 2014/09/03

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Distribution map

(c) N.A. Helme


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