Lachenalia barkeriana

Taxonomy
Scientific Name
Lachenalia barkeriana U.Müll.-Doblies, B.Nord. & D.Müll.-Doblies
Higher Classification
Monocotyledons
Family
HYACINTHACEAE
National Status
Status and Criteria
Near Threatened B1ab(iii,v)
Assessment Date
2013/01/21
Assessor(s)
N.A. Helme, L. von Staden & G.D. Duncan
Justification
A range-restricted species (EOO 5634 km²), occurring at between 11 and 15 locations and declining due to habitat loss to mining.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape, Western Cape
Range
Namaqualand, Garies to Kliprand, Loeriesfontein and Brand-se-baai.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Fynbos, Succulent Karoo
Description
Deep, red sandy soils on flats, granitic sand at the base of granite outcrops, and clay soils on alluvial plains.
Threats
Subpopulations near the coast are threatened by expanding open cast sand mining. At a few known locations, plants are subjected to heavy grazing, but does not appear to be negatively impacted by grazing.
Population

At some locations further inland, very few plants were recorded (G. Duncan, pers. obs.), however in deep sands near the coast, subpopulations number many thousands of plants (N.A. Helme, pers. obs.).


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Lachenalia barkeriana U.Müll.-Doblies, B.Nord. & D.Müll.-DobliesRare 2012.1
Lachenalia barkeriana U.Müll.-Doblies, B.Nord. & D.Müll.-DobliesRare Raimondo et al. (2009)
Lachenalia barkeriana U.Müll.-Doblies, B.Nord. & D.Müll.-DobliesRare Hilton-Taylor (1996)
Bibliography

Duncan, G.D. 1988. Lachenalia handbook. Annals of Kirstenbosch Botanic Garden 17:1-71.


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Hilton-Taylor, C. Unpublished.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.


Müller-Doblies, U., Nordenstam, B. and Müller-Doblies, D. 1987. A second species of Lachenalia subgen. Brachyscypha (Hyacinthaceae): Lachenalia barkeriana sp. nov. from southern Little Namaqualand. South African Journal of Botany 53(6):481-488.


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., von Staden, L. & Duncan, G.D. 2013. Lachenalia barkeriana U.Müll.-Doblies, B.Nord. & D.Müll.-Doblies. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2019/05/27

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Distribution map

© N.A. Helme


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