Haworthia lockwoodii

Taxonomy
Scientific Name
Haworthia lockwoodii Archibald
Higher Classification
Monocotyledons
Family
ASPHODELACEAE
National Status
Status and Criteria
Vulnerable A2acd; B1ab(iii,v)+2ab(iii,v)
Assessment Date
2012/08/17
Assessor(s)
J.H. Vlok & D. Raimondo
Justification
EOO 632 km², between five and 10 locations are declining as a result of collecting for the specialist succulent horticultural trade and overgrazing by livestock. A decline of over 30% of the population is suspected to have taken place in the past 50 years as a result of succulent collecting and habitat degradation.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Laingsburg.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Koedoesberge-Moordenaars Karoo, Western Little Karoo
Description
Succulent karoo shrubland, on dry, north-facing slopes, usually in Witteberg quartzite.
Threats
In 2005, a consignment of illegally harvested plants was seized at Laingsburg and contained over 200 individuals of this species (a number greater than has been recorded in any one subpopulation). Much of this species' habitat is also very degraded as a result of severe livestock overgrazing.
Population
Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Haworthia lockwoodii ArchibaldEN B1ab(iii,v)+2ab(iii,v)2012.1
Haworthia lockwoodii ArchibaldEN B1ab(iii,v)Raimondo et al. (2009)
Haworthia lockwoodii ArchibaldVulnerable Hilton-Taylor (1996)
Bibliography

Bayer, M.B. 1982. The new Haworthia handbook. National Botanical Gardens of South Africa.


Bayer, M.B. 1999. Haworthia Revisited: A revision of the genus. Umdaus Press, Hatfield.


Craib, C. 1990. Some rare Haworthias in South Africa. Aloe 27:23-26.


Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.


Pilbeam, J.W. 1983. Haworthia and Astroloba, a collector's guide. B.T. Batsford Ltd., London.


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.


Scott, C.L. 1985. The genus Haworthia, a taxonomic revision. Aloe Books, Johannesburg.


Citation
Vlok, J.H. & Raimondo, D. 2012. Haworthia lockwoodii Archibald. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2018/11/21

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Distribution map


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