Taxonomy
Scientific Name
Babiana montana G.J.Lewis
Higher Classification
Monocotyledons
Family
IRIDACEAE
National Status
Status and Criteria
Endangered B1ab(ii,iii,v)+2ab(ii,iii,v)
Assessment Date
2021/04/28
Assessor(s)
P. Goldblatt & D. Raimondo
Justification
This species has an extent of occurrence (EOO) of 3 532 km², and an area of occupancy (AOO) of 44 km². It is known from six locations and the population is severely fragmented. It has lost over 63% of its habitat to wheat cultivation in the past 70 years. Remaining subpopulations are threatened by habitat degradation as a result of alien plant invasion and livestock overgrazing. It is therefore listed as Endangered under criterion B.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
It is endemic to South Africa, and is found from Caledon to De Hoop Nature Reserve in the Western Cape.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Central Ruens Shale Renosterveld, Western Ruens Shale Renosterveld, De Hoop Limestone Fynbos, Elim Ferricrete Fynbos
Description
It occurs on sandstone and limestone slopes.
Threats
This species is very threatened by agricultural activity (past and ongoing threat to all known localities). It has lost 63% of its habitat (calculated using landcover data in GIS). Aliens are a severe ongoing threat, especially in the Napier region (pines and acacias).
Population

It is known from six subpopulations. From monitoring data the subpopulations are small never numbering more than 250 individuals. With subpopulations also occurring on isolated remnants the population is considered to be severely fragmented. The Napier records listed 100-250 mature individuals in 2013, while 50-100 mature individuals were recorded more recently in 2020 at Vogelgezang farm. The population trend is inferred to be declining due to ongoing habitat degradation as a result of alien invasive plants.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Babiana montana G.J.LewisEN B1ab(ii,iii,v)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.


Goldblatt, P. and Manning, J.C. 2007. A revision of the southern African genus Babiana, Iridaceae, Crocoideae. Strelitzia 18:1-97. South African National Biodiversity Institute, Pretoria.


Goldblatt, P. and Manning, J.C. 2020. Iridaceae of southern Africa. Strelitzia 42. South African National Biodiversity Institute, Pretoria.


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. 2021. Babiana montana G.J.Lewis. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09

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Distribution map

© C. Paterson-Jones


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