Taxonomy
Scientific Name
Gladiolus comptonii G.J.Lewis
Higher Classification
Monocotyledons
Family
IRIDACEAE
National Status
Status and Criteria
Critically Rare
Assessment Date
2020/11/24
Assessor(s)
N.A. Helme & D. Raimondo
Justification
Gladiolus comptonii is restricted to a very small area on an inselberg in the Clanwilliam district. It has an extent of occurrence (EOO) of less than 20 km², but it not threatened. 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
Western Cape
Range
This species is endemic to South Africa, and is found in Olifants River Mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Graafwater Sandstone Fynbos
Description
It occupies montane fynbos, upper rocky sandstone slopes, 600-700 m.
Threats
There are no threats to Gladiolus comptonii.
Population

This species is known from a single subpopulation, probably of less than 100 individuals (Goldblatt and Manning 1998). N.A. Helme reports seeing about 20 plants in 2005.


Population trend
Stable
Conservation
It is not formally conserved, but occurs on a very isolated hill with no perceived threats.
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Gladiolus comptonii G.J.LewisCritically Rare Raimondo et al. (2009)
Gladiolus comptonii G.J.LewisRare Hilton-Taylor (1996)
Gladiolus comptonii G.J.LewisVulnerable Hall et al. (1980)
Bibliography

Goldblatt, P. and Manning, J.C. 1998. Gladiolus in southern Africa. Fernwood Press, Vlaeberg.


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.


Lewis, G.J., Obermeyer, A.A. and Barnard, T.T. 1972. Gladiolus: a revision of the South African species. Journal of South African Botany Supplement 10:1-316. Purnell, Cape Town.


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. 2020. Gladiolus comptonii G.J.Lewis. National Assessment: Red List of South African Plants version . Accessed on 2024/04/14

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Distribution map

© C. Paterson-Jones


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