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Scientific Name | Lachenalia arbuthnotiae W.F.Barker |
Higher Classification | Monocotyledons |
Family | HYACINTHACEAE |
National Status |
Status and Criteria | Critically Endangered B2ab(ii,iii,iv,v) |
Assessment Date | 2016/09/14 |
Assessor(s) | D. Raimondo, G.D. Duncan, L. von Staden & C. Dorse |
Justification | AOO <10 km², two, possibly three, small, severely fragmented subpopulations remain after extensive habitat loss to urban expansion, and continue to decline due to ongoing habitat loss and degradation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Cape Flats. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Cape Flats Dune Strandveld, Boland Granite Fynbos, Cape Flats Sand Fynbos |
Description | Seasonally waterlogged depressions at the edge of wetlands in Cape Flats Sand Fynbos. |
Threats |
| This species has lost more than 90% of its habitat to urban expansion, and only a few critically small fragments remain. These continue to be degraded predominantly due to increasingly dense infestations of alien invasive plants, as well as disruptions of water flow to wetlands, and water pollution, leading to eutrophication and disturbance of native species dynamics. |
Population |
This species remains on two small, isolated fragments on the Cape Flats. One subpopulation, last surveyed in 2006 consists of about 60 plants, and the second subpopulation, discovered in 2016 after a fire consists of at least 500 plants. A third subpopulation possibly still exists around Cape Town International Airport (Duncan 2012), but has not been surveyed in a very long time.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Lachenalia arbuthnotiae W.F.Barker | CR B2ab(ii,iii,iv,v) | Raimondo et al. (2009) | |
Bibliography |
Duncan, G.D. 1988. Lachenalia handbook. Annals of Kirstenbosch Botanic Garden 17:1-71.
Duncan, G.D. 2012. The genus Lachenalia. Kew Publishing, Royal Botanic Gardens, Kew.
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.
Manning, J., Goldblatt, P. and Snijman, D. 2002. The color encyclopedia of Cape bulbs. Timber Press, Portland/Cambridge.
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.
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Citation |
| Raimondo, D., Duncan, G.D., von Staden, L. & Dorse, C. 2016. Lachenalia arbuthnotiae W.F.Barker. National Assessment: Red List of South African Plants version . Accessed on 2025/06/01 |
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