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Scientific Name | Othonna pygmaea Compton |
Higher Classification | Dicotyledons |
Family | ASTERACEAE |
National Status |
Status and Criteria | Rare |
Assessment Date | 2018/05/23 |
Assessor(s) | L. von Staden |
Justification | Othonna pygmaea is a rare, range-restricted species with an extent of occurrence (EOO) of 47 km². It is known from two subpopulations, and is not suspected to be in danger of extinction, and may be more common than records suggest. It is therefore listed under the IUCN 3.1 Criteria, globally, as Least Concern but is nationally categorised as Rare. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape, Western Cape |
Range | This species is endemic to South Africa, and is found from the southern Bokkeveld Escarpment to Biedouw Valley. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Nardouw Sandstone Fynbos, Bokkeveld Sandstone Fynbos, Cederberg Sandstone Fynbos |
Description | It occurs in shallow depressions or crevices in sandstone pavements. |
Threats |
| There are no severe threats to Othonna pygmaea. Its specific habitat is not suitable to cultivation, which is the dominant cause of habitat loss for plant species in this region. |
Population |
It is a rare and localized habitat specialist, known from two subpopulations, and last recorded in 1972. Plants are small and very easily overlooked, and therefore it is likely to be more common than records suggest. Field surveys are needed to gain a better understanding of the distribution and abundance of this species. The population is not suspected to be declining.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Othonna pygmaea Compton | Rare | 2020.1 | | Othonna pygmaea Compton | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Compton, R.H. 1953. Three small species of Othonna. Journal of South African Botany 19:137-143.
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity 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.
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Citation |
| von Staden, L. 2018. Othonna pygmaea Compton. National Assessment: Red List of South African Plants version . Accessed on 2025/01/25 |
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