Haworthia springbokvlakensis

Taxonomy
Scientific Name
Haworthia springbokvlakensis C.L.Scott
Higher Classification
Monocotyledons
Family
ASPHODELACEAE
National Status
Status and Criteria
Endangered B1ab(iii)+2ab(iii)
Assessment Date
2014/03/24
Assessor(s)
J.H. Vlok, D. Raimondo & A.P. Dold
Justification
Recorded from fewer than 10, severely fragmented subpopulations from an area of 200 km². A former impact from collecting for the specialist succulent horticultural trade is no longer a threat, however much of its range is currently being heavily grazed by livestock and there is a continuing decline in the quality of habitat.
Distribution
Endemism
South African endemic
Provincial distribution
Eastern Cape
Range
Steytlerville, mainly in the Springbokvlakte, but found from Klipplaat to Kirkwood.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Willowmore Gwarrieveld
Description
Succulent karoo, in a variety of habitats ranging from flat, pan-like areas to very stony areas, but usually in well-drained soils.
Threats
Succulent collectors have removed a significant proportion of the population from the wild in the past (D. Cumming pers. comm.). However, the population is now well-protected and decline due to collecting is likely to have been much reduced. G. Marx (pers. comm. 2007). The most severe current threat to this species is habitat degradation due to overgrazing (J.H. Vlok, pers. comm. 2007).
Population
Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Haworthia springbokvlakensis C.L.ScottEN B1ab(iii)+2ab(iii)Raimondo et al. (2009)
Haworthia springbokvlakensis C.L.ScottVulnerable Hilton-Taylor (1996)
Haworthia springbokvlakensis C.L.ScottIndeterminate Hall et al. (1980)
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.


Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.


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


Phillipson, P.B. 1995. What is the Albany hot-spot? The Naturalist 39:14-19.


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.


Victor, J.E. and Dold, A.P. 2003. Threatened plants of the Albany Centre of Floristic Endemism, South Africa. South African Journal of Science 99:437-446.


Citation
Vlok, J.H., Raimondo, D. & Dold, A.P. 2014. Haworthia springbokvlakensis C.L.Scott. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2018/12/19

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Distribution map


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