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Scientific Name | Othonna armiana Van Jaarsv. |
Higher Classification | Dicotyledons |
Family | ASTERACEAE |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2015/05/21 |
Assessor(s) | D. Raimondo & L. von Staden |
Justification | A localized habitat specialist, known from one location and potentially threatened by overgrazing and collection of plants from the wild for the succulent trade. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Richtersveld, north-east of Eksteenfontein. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Kahams Mountain Desert |
Description | Rock crevices on upper slopes. |
Threats |
| Severe overstocking of livestock in the Richtersveld is causing ongoing degradation, loss of vegetation cover, and species diversity due to overgrazing and trampling. This species' preference for rocky crevices however may offer it some protection against the effects of grazing. It is also popular in horticulture, and is potentially threatened by collectors removing plants from the wild for the succulent trade. |
Population |
This species is locally abundant in suitable habitat (Van Jaarsveld 1986).
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Othonna armiana Van Jaarsv. | VU D2 | 2015.1 | | Othonna armiana Van Jaarsv. | Critically Rare | Raimondo et al. (2009) | | Othonna armiana Van Jaarsv. | Lower Risk - Near Threatened | Victor (2002) | | Othonna armiana Van Jaarsv. | Rare | Hilton-Taylor (1996) | |
Bibliography |
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
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.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
Van Jaarsveld, E.J. 1986. Othonna armiana (Asteraceae): a new species from the North-western Cape. South African Journal of Botany 52(6):569-571.
Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.
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Citation |
| Raimondo, D. & von Staden, L. 2015. Othonna armiana Van Jaarsv. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2023/12/08 |
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