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Scientific Name | Colchicum vanjaarsveldii (U.Müll.-Doblies, Hähnl.,U.U.Müll.-Doblies & D.Müll.-Doblies) J.C.Manning & Vinn. |
Higher Classification | Monocotyledons |
Family | COLCHICACEAE |
Synonyms | Androcymbium vanjaarsveldii U.Müll.-Doblies, Hähnl, U.U.&D.Müll.-Doblies |
National Status |
Status and Criteria | Rare |
Assessment Date | 2015/05/13 |
Assessor(s) | D. Raimondo & L. von Staden |
Justification | A range-restricted (EOO 358 km²), but locally common species that is not threatened. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Central mountains of the Richtersveld. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Kosiesberg Succulent Shrubland, Central Richtersveld Mountain Shrubland, Stinkfonteinberge Quartzite Fynbos |
Description | Rock crevices and quartzite outcrops. |
Threats |
| Parts of this species' range are affected by severe overgrazing, which is causing a loss of species diversity and shrub cover, as well as erosion as a result of trampling of exposed soil. However, over most of its habitat across the more remote, higher-lying areas of the Richtersveld, grazing pressure is currently low. As rangelands on lower slopes and flats continue to be degraded, herders are starting to move their livestock into these areas in search of better grazing, and grazing pressure could increase in future. However, judging by this species' persistence in areas already heavily grazed, grazing is not a severe threat. |
Population |
A common species across the central mountains of the Richtersveld. It persists even in heavily grazed areas, such as Helskloof, and may be resilient to the effects of overgrazing. This species is not grazed.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Colchicum vanjaarsveldii (U.Müll.-Doblies, Hähnl.,U.U.Müll.-Doblies & D.Müll.-Doblies) J.C.Manning & Vinn. | Rare | Raimondo et al. (2009) | |
Bibliography |
Müller-Doblies, U. and Müller-Doblies, D. 1998. De Liliifloris Notulae: 6. De decuria prima specierum novarum generis Androcybium sect. Androcymbium (Colchicaceae) in Africa Australis. Feddes Repertorium 109(7-8):551-572.
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.
Vinnersten, A. and Manning, J. 2007. A new classification of Colchicaceae. Taxon 56(1):171-178.
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Citation |
| Raimondo, D. & von Staden, L. 2015. Colchicum vanjaarsveldii (U.Müll.-Doblies, Hähnl.,U.U.Müll.-Doblies & D.Müll.-Doblies) J.C.Manning & Vinn. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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