Hottentotsboegoe

Taxonomy
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).


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.


Citation
von Staden, L. 2015. Othonna graveolens O.Hoffm. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09

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Distribution map


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