Taxonomy
Scientific Name
Babiana tubulosa (Burm.f.) Ker Gawl.
Higher Classification
Monocotyledons
Family
IRIDACEAE
Synonyms
Babiana tubulosa (Burm.f.) Ker Gawl. var. tubulosa
National Status
Status and Criteria
Near Threatened B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v)
Assessment Date
2021/04/07
Assessor(s)
J.C. Manning, D. Raimondo, L. von Staden & T. Patel
Justification
This Western Cape endemic has a narrow distribution, with an extent of occurrence (EOO) of 5 582 km², and an area of occupancy (AOO) of 248 km². It is still fairly common and remains at at least 20 locations. It however continues to decline due to ongoing habitat loss and degradation. It almost qualifies as Vulnerable under criteria B, and is therefore listed as Near Threatened.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
It is a fairly narrow endemic of the Western Cape, South Africa, and extends from the Saldanha Peninsula to the hills between Mamre and Darling and inland on the Paardeberg south of Malmesbury.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Langebaan Dune Strandveld, Saldanha Limestone Strandveld, Saldanha Flats Strandveld, Saldanha Granite Strandveld, Swartland Granite Renosterveld
Description
It occurs on well-drained granite-derived slopes, granite outcrops, occasionally on limestone, or on coastal dunes.
Threats
At least 50% of this species habitat has been lost. Habitat loss to coastal development is the main threat to this species on the Vredenburg Peninsula, where it continues to decline due to development around Dwarskersbos, St Helena Bay, Saldanha, Jacobsbaai and Langebaan. Around Mamre and Darling, most of its habitat has been lost to crop fields, and only small fragments remain. These are infested with unmanaged alien invasive plants, and are frequently overstocked with livestock, leading to ongoing degradation due to overgrazing. Some sites are also degraded due to a lack of fire.
Population

In spite of extensive habitat loss this species is still fairly common, and has been recently recorded from at least 20 locations. It is however rapidly declining on the coast around Vredenburg, with only one subpopulation protected within the West Coast National Park. Around Darling and Mamre a few small, isolated subpopulations remain, but these represent less than 50% of the remaining population, and therefore the population is not considered severely fragmented.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Babiana tubulosa (Burm.f.) Ker Gawl.NT B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v)2017.1
Babiana tubulosa (Burm.f.) Ker Gawl.VU D2Raimondo 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.


Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. 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
Manning, J.C., Raimondo, D., von Staden, L. & Patel, T. 2021. Babiana tubulosa (Burm.f.) Ker Gawl. National Assessment: Red List of South African Plants version . Accessed on 2025/06/07

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Distribution map

© S. Falanga

© C. Paterson-Jones

© J.C. Manning


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