|
Scientific Name | Colchicum henssenianum (U.Müll.-Doblies & D.Müll.-Doblies) J.C.Manning & Vinn. |
Higher Classification | Monocotyledons |
Family | COLCHICACEAE |
Synonyms | Androcymbium henssenianum U.Müll.-Doblies & D.Müll.-Doblies |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2015/07/13 |
Assessor(s) | D. Raimondo & L. von Staden |
Justification | A rare and poorly known species, currently known from one location but possibly overlooked. It is potentially threatened by overgrazing. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Richtersveld, Eksteenfontein. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Central Richtersveld Mountain Shrubland |
Description | Dry sandy valleys. |
Threats |
| The western plains of the Richtersveld, particularly those close to settlements, have been severely degraded due to overstocking of livestock, which has led to a loss of plant species diversity and shrub cover due to overgrazing and trampling. Colchicum species are however poisonous to livestock, and somewhat resilient to disturbance, and it may be able to persist in spite of heavy overgrazing. |
Population |
This species is known from one location, and has not been collected for over 20 years, but likely to be overlooked. Surveys are urgently needed to determine whether this species still persists.
|
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Colchicum henssenianum (U.& D.Müll.-Doblies) J.C.Manning & Vinn. | VU D2 | Raimondo et al. (2009) | | Androcymbium henssenianum U.& D.Müll.-Doblies | Rare | Hilton-Taylor (1996) | |
Bibliography |
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Manning, J., Forest, F. and Vinnersten, A. 2007. The genus Colchicum L. redefined to include Androcymbium Willd. based on molecular evidence. Taxon 56(3):872-882.
Müller-Doblies, U. and Müller-Doblies, D. 1984. Zur kenntnis der gattung Androcymbium (Colchicaceae) im südlichen Afrika: zwei synonyma und fünf neue Arten. Willdenowia 14:179-197.
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 |
| Raimondo, D. & von Staden, L. 2015. Colchicum henssenianum (U.Müll.-Doblies & D.Müll.-Doblies) J.C.Manning & Vinn. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
Comment on this assessment
