| Scientific Name | Drosanthemum tuberculiferum L.Bolus | Higher Classification | Dicotyledons | Family | AIZOACEAE |
National Status | Status and Criteria | Endangered B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) | Assessment Date | 2015/12/14 | Assessor(s) | L. von Staden | Justification | A range-restricted species (EOO 273 km²), known from three locations and declining due to ongoing habitat loss to urban and agricultural expansion. |
Distribution | Endemism | South African endemic | Provincial distribution | Western Cape | Range | Worcester to Robertson. |
Habitat and Ecology | Major system | Terrestrial | Major habitats | Robertson Karoo, North Langeberg Sandstone Fynbos | Description | Open karroid veld on gravelly loam. |
Threats | | Threatened by ongoing habitat loss to urban expansion around Worcester. Further east towards Robertson, much of this species' habitat has already been converted to vineyards, and loss to further agricultural expansion continues. |
Population | This species is known from only three locations, but Vlok and Schutte-Vlok (2010) suggest that it may be more common, and somewhat tolerant of disturbance. Field surveys are likely to reveal more unrecorded subpopulations.
| Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Drosanthemum tuberculiferum L.Bolus | EN B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) | 2017.1 | | Drosanthemum tuberculiferum L.Bolus | Threatened | Raimondo et al. (2009) | |
Bibliography | 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.
Vlok, J. and Schutte-Vlok, A.L. 2010. Plants of the Klein Karoo. Umdaus Press, Hatfield.
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Citation | | von Staden, L. 2015. Drosanthemum tuberculiferum L.Bolus. National Assessment: Red List of South African Plants version . Accessed on 2025/04/18 |
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 © J.H. Vlok/A.L. Schutte-Vlok
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