Taxonomy
Scientific Name
Indigofera tomentosa Eckl. & Zeyh.
Higher Classification
Dicotyledons
Family
FABACEAE
Synonyms
Indigofera incana Thunb. var. angustistipulata Baker f.
National Status
Status and Criteria
Near Threatened B1ab(iii)+2ab(iii)
Assessment Date
2021/05/04
Assessor(s)
L. von Staden & D. Raimondo
Justification
This species has an extent of occurrence (EOO) of 12 982 km², and an area of occupancy (AOO) of 100 km². It is found at between 15 and 20 locations, which continue to decline due to ongoing habitat loss to coastal development. It is therefore assessed as Near Threatened, approaching B1ab(iii)+2ab(iii).
Distribution
Endemism
South African endemic
Provincial distribution
Eastern Cape, Western Cape
Range
It is endemic to the Eastern and Western Cape provinces of South Africa. It is found from Mossel Bay to Port Elizabeth.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Groot Brak Dune Strandveld, St Francis Dune Thicket, Hartenbos Dune Thicket, Grass Ridge Bontveld, Goukamma Dune Thicket
Description
This species inhabits coastal fynbos.
Threats
Its distribution range falls within one of South Africa's most popular coastal holiday destinations, where it is threatened by ongoing, rapid habitat loss to development of coastal resorts and holiday houses. At least 50% of this species' lowland coastal habitat is already transformed.
Population

Surveys of suitable habitat within its range show that there are between 15 and 20 locations. Seven of the 15 subpopulations monitored over the past 15 years are small, occurring as clumps of between 10 and 50 individuals. However most of the records on iNaturalist do not include sizes of subpopulations and thus it is not possible to determine if subpopulations are always small. Many of the known existing locations are threatened by coastal development and this species is declining at an ongoing rate.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Indigofera tomentosa Eckl. & Zeyh.Least Concern 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.


Schrire, B.D. 1991. Systematic studies in the African Indigofereae (Leguminosae - Papilionioideae). University of Natal.


Citation
von Staden, L. & Raimondo, D. 2021. Indigofera tomentosa Eckl. & Zeyh. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14

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Distribution map

© C. Logie

© C. Logie


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