Taxonomy
Scientific Name
Gladiolus roseovenosus Goldblatt & J.C.Manning
Higher Classification
Monocotyledons
Family
IRIDACEAE
National Status
Status and Criteria
Critically Endangered C2a(i)
Assessment Date
2008/02/14
Assessor(s)
J.H. Vlok & D. Raimondo
Justification
Endemic to a small area on the southern slopes of the Outeniqua Mountains (EOO < 100 km²), known from four historical subpopulations, one of which was destroyed by afforestation. The three remaining subpopulations are all very small (average 20 plants) and there are fewer than 200 plants in total. A decline in habitat quality is occurring due to alien plant invasion.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Outeniqua Mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
South Outeniqua Sandstone Fynbos
Description
Moist fynbos on sandstone slopes.
Threats
Afforestation: severe past threat to one of the four known subpopulations which is now lost. The remaining 3 subpopulations have lost significant habitat to plantations Invasive plants: All three remaining known subpopulations are small fragments between forestry areas and are being severely invaded by woody acacias and herbaceous aliens.
Population

Three remnant populations remain- all of which are very small - less than 200 plants left.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Gladiolus roseovenosus Goldblatt & J.C.ManningCR C2a(i)Raimondo et al. (2009)
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.


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.


Vlok, J. and Schutte-Vlok, A.L. 2010. Plants of the Klein Karoo. Umdaus Press, Hatfield.


Citation
Vlok, J.H. & Raimondo, D. 2008. Gladiolus roseovenosus Goldblatt & J.C.Manning. National Assessment: Red List of South African Plants version . Accessed on 2024/04/14

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Distribution map

© J.H. Vlok/A.L. Schutte-Vlok

© Outramps


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