Taxonomy
Scientific Name
Lachenalia longibracteata E.Phillips
Higher Classification
Monocotyledons
Family
HYACINTHACEAE
National Status
Status and Criteria
Vulnerable A2c
Assessment Date
2018/09/30
Assessor(s)
N.A. Helme, D. Raimondo & L. von Staden
Justification
Lachenalia longibracteata is a range-restricted species, with an extent of occurrence (EOO) of 17 789 km². It has lost >70% of its habitat and loss and degradation continues. A population reduction of at least 30% over three generations (60 years) is inferred from the rate of habitat loss between 1990 and 2014. This species is still relatively common, occurring at more than 30 locations, but most of these are isolated remnants of natural vegetation.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
This species is endemic to the Western Cape's coastal lowlands, where it occurs from Lambert's Bay to Melkbosstrand, and inland to Citrusdal, Piketberg, Tulbagh and Kalbaskraal.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Swartland Shale Renosterveld, Swartland Granite Renosterveld, Saldanha Granite Strandveld, Breede Shale Renosterveld, Boland Granite Fynbos, Cape Flats Sand Fynbos, Breede Alluvium Fynbos, Saldanha Flats Strandveld, Citrusdal Shale Renosterveld, Swartland Silcrete Renosterveld, Breede Shale Fynbos, Atlantis Sand Fynbos, Hopefield Sand Fynbos, Swartland Alluvium Fynbos
Description
It occurs in stony or gravelly clay soils, predominantly derived from shale or granite on lower slopes and flats.
Threats
This species has already lost more than 70% of its habitat to crop cultivation and urban expansion. Habitat loss continues, and only small remnants remain. Most of this species' remaining habitat continues to be degraded due to spreading alien invasive plants and as well as inappropriate fire management.
Population

This species is still common in spite of ongoing habitat loss and fragmentation. Plants grow singly, in small clumps or large colonies. The population continues to decline due to ongoing habitat loss and degradation. A population reduction of 30-35% over three generations (60 years) is inferred based on the rate of habitat loss observed between 1990 and 2014.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Lachenalia longibracteata E.PhillipsDeclining Raimondo et al. (2009)
Bibliography

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.


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
Helme, N.A., Raimondo, D. & von Staden, L. 2018. Lachenalia longibracteata E.Phillips. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/08/11

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Distribution map


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