Taxonomy
Scientific Name
Pterygodium deflexum Bolus
Higher Classification
Monocotyledons
Family
ORCHIDACEAE
Synonyms
Corycium deflexum (Bolus) Rolfe
National Status
Status and Criteria
Least Concern
Assessment Date
2015/10/01
Assessor(s)
L. von Staden
Justification
Widespread and not in danger of extinction.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape, Western Cape
Range
Kubiskou Mountain north of Loeriesfontein to the eastern Cederberg and Roggeveld Escarpment from Calvinia to Sutherland.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Fynbos
Description
Dry renosterveld and fynbos, 830-1960 m.
Threats
No severe threats. Field observations indicate that this species persists in overgrazed vegetation on the Roggeveld Escarpment.
Population

Subpopulations are large, consisting of 100s to 1000s of clonal individuals (Liltved and Johnson unpubl.).


Population trend
Stable
Notes
There is ongoing scientific debate regarding the placement of this taxon, with some publications (e.g. Johnson and Bytebier 2015) classifying it in the genus Corycium, while others, such as Manning and Goldblatt (2012) and Snijman (2013) include it within Pterygodium.
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Pterygodium deflexum BolusLeast Concern 2014.1
Corycium deflexum (Bolus) RolfeLeast Concern Raimondo et al. (2009)
Corycium deflexum (Bolus) RolfeLower Risk - Least Concern Victor (2002)
Corycium deflexum (Bolus) RolfeNot Threatened Hilton-Taylor (1996)
Corycium deflexum (Bolus) RolfeUncertain 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.


Liltved, W.R. and Johnson, S.D. Unpublished. The Cape Orchids - Wild orchids of the Cape Floral Kingdom.


Linder, H.P. 1999. Corycium. In: H.P. Linder and H. Kurzweil (eds.), Orchids of southern Africa (pp. 339-350), A.A. Balkema, Rotterdam.


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.


Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.


Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.


Citation
von Staden, L. 2015. Pterygodium deflexum Bolus. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14

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