Oedera decussata

Taxonomy
Scientific Name
Oedera decussata (L'Her.) N.G.Bergh
Higher Classification
Dicotyledons
Family
ASTERACEAE
Synonyms
Relhania decussata L'Hér., Relhania patersoniae L.Bolus
National Status
Status and Criteria
Rare
Assessment Date
2007/05/22
Assessor(s)
R.C. Turner & D. Raimondo
Justification
A habitat specialist, known from less than 10 sites with no recorded threats. It is therefore listed under the IUCN 3.1 Criteria, globally, as Least Concern but is nationally categorised as Rare.
Distribution
Endemism
South African endemic
Provincial distribution
Eastern Cape, Western Cape
Range
This species' distribution ranges from Kammanassie, Baviaanskloof, Kouga, Anthoniesberg and Swartberg Mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Kouga Grassy Sandstone Fynbos, Kouga Sandstone Fynbos, South Kammanassie Sandstone Fynbos, North Kammanassie Sandstone Fynbos, North Outeniqua Sandstone Fynbos, Baviaans Valley Thicket
Description
Plants grow in stony, fairly high mountain slopes.
Threats
No threats have been recorded for this species.
Population
Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Relhania decussata L'Hér.Rare Raimondo et al. (2009)
Relhania decussata L'Hér.Not Threatened Hilton-Taylor (1996)
Relhania decussata L'Hér.Uncertain Hall et al. (1980)
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.


Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.


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.


Stafford, G.I., Wikkelso, M.J., Nancke, L., Jager, A.K., Moller, M. and Ronsted, N. 2016. The first phylogenetic hypothesis for the southern African endemic genus Tulbaghia (Amaryllidaceae, Allioideae) based on plastid and nuclear DNA sequences. Botanical Journal of the Linnean Society 181:156–170.


Citation
Turner, R.C. & Raimondo, D. 2007. Oedera decussata (L'Her.) N.G.Bergh. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14

Comment on this assessment Comment on this assessment
Distribution map


Search for images of Oedera decussata on iNaturalist