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Scientific Name | Tylecodon pygmaeus (W.F.Barker) Toelken |
Higher Classification | Dicotyledons |
Family | CRASSULACEAE |
Synonyms | Cotyledon pygmaea W.F.Barker |
Common Names | Dwerg Botterboom (a) |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2015/07/31 |
Assessor(s) | N.A. Helme, A. le Roux, L. von Staden & M.M.P. Mogale |
Justification | A range-restricted (EOO 534 km²), but locally common species that is not in danger of extinction. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Knersvlakte. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Succulent Karoo |
Description | Quartz patches on flats and gentle slopes. |
Threats |
| There has been some mining applications on parts of this species' range (N.A. Helme pers. comm.), and if mining proceeds, some subpopulations may be lost. The species is difficult to cultivate as it does not grow well outside its native habitat (Van Jaarsveld and Koutnik 2004), and may possibly be targeted by succulent collectors. It is however very common, and collecting is not considered to be causing population decline at present. |
Population |
This species is localized to the Knersvlakte, but is a common pioneer species (A. le Roux, pers. obs.).
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Tylecodon pygmaeus (W.F.Barker) Toelken | Least Concern | 2015.1 | | Tylecodon pygmaeus (W.F.Barker) Toelken | Threatened | Raimondo et al. (2009) | |
Bibliography |
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.
Tölken, H.R. 1978. New taxa and new combinations in Cotyledon and allied genera. Bothalia 12(3):377-393.
Tölken, H.R. 1985. Crassulaceae. In: O.A. Leistner (ed). Flora of southern Africa 14,1:1-244. Botanical Research Institute, Pretoria.
Van Jaarsveld, E.J. and Koutnik, D. 2004. Cotyledon and Tylecodon. Umdaus Press, Pretoria.
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Citation |
| Helme, N.A., le Roux, A., von Staden, L. & Mogale, M.M.P. 2015. Tylecodon pygmaeus (W.F.Barker) Toelken. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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