Taxonomy
Scientific Name
Indigofera rehmannii Baker f.
Higher Classification
Dicotyledons
Family
FABACEAE
National Status
Status and Criteria
Endangered A2c
Assessment Date
2015/07/01
Assessor(s)
L. von Staden, S. Kremer-Köhne & B. Schrire
Justification
A population reduction of at least 50% over the past two to three generations is estimated based on 70% habitat loss predominantly to timber plantations.
Distribution
Endemism
South African endemic
Provincial distribution
Limpopo
Range
Haenertsburg to Woodbush.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Woodbush Granite Grassland
Description
Woodbush Granite Grassland.
Threats
Indigofera rehmannii is endemic to the Critically Endangered Woodbush Granite Grassland, of which less than 30% remains intact, mainly due to extensive loss to timber plantations and agricultural expansion between 1950 and the late 1970s, and only about 10 relatively undisturbed fragments remain, the rest being severely overgrazed and infested with unmanaged alien invasive plants. However, even relatively well-preserved fragments such as the Haenertsburg Townlands continue to be degraded as a result of inappropriate fire management, which is possibly the cause of increasing encroachment by woody species.
Population

Indigofera rehmannii is a localized endemic that has become rarer due to extensive habitat loss. It is a long-lived resprouter, and a population reduction of at least 50% is estimated over a period of two to three generations, based on 70% habitat loss.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Indigofera rehmannii Baker f.EN A2c2015.1
Indigofera rehmannii Baker f.Least Concern Raimondo et al. (2009)
Bibliography

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.


Retief, E. and Herman, P.P.J. 1997. Plants of the northern provinces of South Africa: keys and diagnostic characters. Strelitzia 6. National Botanical Institute, Pretoria.


Citation
von Staden, L., Kremer-Köhne, S. & Schrire, B. 2015. Indigofera rehmannii Baker f. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14

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Distribution map


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