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Scientific Name | Othonna graveolens O.Hoffm. |
Higher Classification | Dicotyledons |
Family | ASTERACEAE |
Synonyms | Senecio cacteaeformis Klatt |
Common Names | Hotnotsbuchu (e), Hottentotsboegoe (a) |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2015/05/19 |
Assessor(s) | L. von Staden |
Justification | A widespread, but rare and poorly known species, but not suspected to be in danger of extinction. |
Distribution |
Endemism | Not endemic to South Africa |
Provincial distribution | Northern Cape |
Range | Southern Namibia to the Richtersveld. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Desert, Succulent Karoo |
Description | Arid rocky, often quartz, ridges. |
Threats |
| This species is threatened by ongoing habitat loss to mining along the Gariep Valley. Elsewhere, it is possibly threatened by overgrazing. Records with precise locality details are from upper slopes on the central mountains of the Richtersveld, where grazing pressure is currently low. Most other records are from the eastern Richtersveld, where grazing pressure is also not as severe as on the western plains. |
Population |
Othonna graveolens is rare and poorly known in South Africa, where it has been recorded from six widely scattered localities. It is a tall shrub (1-2 meters high), and therefore not easily overlooked. The genus Othonna is in need of revision, and the lack of records may also be due to difficulties with species identifications. In southern Namibia it is restricted to the mountains between Aus and the Orange River (Merxmüller 1965).
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Population trend | Unknown |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Othonna graveolens O.Hoffm. | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Merxmüller, H. 1965. Compositen-studien VII: Othonna in Südwestafrika. Mitteilungen der Botanischen Staatssammlung München 5(627-643).
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.
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Citation |
| von Staden, L. 2015. Othonna graveolens O.Hoffm. National Assessment: Red List of South African Plants version . Accessed on 2025/05/15 |
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