Taxonomy
Scientific Name
Gladiolus engysiphon G.J.Lewis
Higher Classification
Monocotyledons
Family
IRIDACEAE
National Status
Status and Criteria
Vulnerable B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v)
Assessment Date
2006/07/25
Assessor(s)
P. Goldblatt & D. Raimondo
Justification
EOO<800 km², known from less than 10 locations. It has lost over 80% of its habitat to crop cultivation. Declining due to alien plant invasion and livestock grazing and trampling.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Lower foothills of the Langeberg Mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
South Langeberg Sandstone Fynbos, Garden Route Granite Fynbos, Swellendam Silcrete Fynbos, Cape Lowland Alluvial Vegetation
Description
Clay loam at the interface of shale and sandstone strata.
Threats
Habitat loss, Invasive Alien Species (direct effects), Habitat degradation
Population
Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Gladiolus engysiphon G.J.LewisVU B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v)Raimondo et al. (2009)
Gladiolus engysiphon G.J.LewisRare Hilton-Taylor (1996)
Gladiolus engysiphon G.J.LewisUncertain 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
Goldblatt, P. & Raimondo, D. 2006. Gladiolus engysiphon 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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