Taxonomy
Scientific Name
Gladiolus marlothii G.J.Lewis
Higher Classification
Monocotyledons
Family
IRIDACEAE
National Status
Status and Criteria
Least Concern
Assessment Date
2018/10/02
Assessor(s)
D. Raimondo, P. Goldblatt & L. von Staden
Justification
A range-restricted endemic to the Roggeveld Escarpment (EOO 880 km²), known from a few, scattered subpopulations. It is not suspected to be in danger of extinction.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape
Range
Roggeveld Escarpment and Komsberg.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Roggeveld Shale Renosterveld, Central Mountain Shale Renosterveld, Nieuwoudtville-Roggeveld Dolerite Renosterveld
Description
Heavy clay soils on stony slopes and among rocky outcrops near the upper edge of the escarpment, 1800 m.
Population

This species is known from only a few scattered subpopulations, and was previously thought to be rare. It is however fairly common in several places along the Roggeveld Escarpment (Goldblatt and Manning 1998). It is likely that more subpopulations exist in inaccessible places along the escarpment.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Gladiolus marlothii G.J.LewisRare 2017.1
Gladiolus marlothii G.J.LewisLeast Concern Raimondo et al. (2009)
Gladiolus marlothii G.J.LewisNot Threatened Hilton-Taylor (1996)
Gladiolus marlothii G.J.LewisUncertain Hall et al. (1980)
Bibliography

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


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.


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


Citation
Raimondo, D., Goldblatt, P. & von Staden, L. 2018. Gladiolus marlothii G.J.Lewis. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2023/12/08

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Distribution map


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