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Scientific Name | Lachenalia physocaulos W.F.Barker |
Higher Classification | Monocotyledons |
Family | HYACINTHACEAE |
National Status |
Status and Criteria | Endangered B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v) |
Assessment Date | 2019/11/15 |
Assessor(s) | D. Raimondo & G.D. Duncan |
Justification | This species has an extent of occurrence (EOO) of less than 300 km² and is known from two locations. It is losing habitat as a result of vineyard expansion in the Robertson-McGregor area. It therefore qualifies for listing as Endangered under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species is endemic to the Western Cape province of South Africa, where it occurs from Robertson to Swellendam. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Robertson Karoo, Breede Alluvium Renosterveld, Swellendam Silcrete Fynbos, Cape Lowland Alluvial Vegetation |
Description | It occurs in transition between succulent karoo and renosterveld on sandy flats and slopes. |
Threats |
| It is threatened by ongoing habitat loss to agricultural expansion, particularly vineyards. |
Population |
Plants grow singly within larger colonies, or sometimes in transition of vegetation types. A continuing decline is inferred from ongoing habitat loss due to agriculture, but the rate of loss is unlikely to exceed 5% in three generations.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Lachenalia physocaulos W.F.Barker | EN B1ab(ii,iii,iv,v) | Raimondo et al. (2009) | | Lachenalia physocaulos W.F.Barker | Indeterminate | Hilton-Taylor (1996) | |
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.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Hilton-Taylor, C. Unpublished. Succulent Karoo Red Data List (version 1997 - in preparation). SANBI.
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. 2019. Lachenalia physocaulos W.F.Barker. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09 |
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