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Scientific Name | Tulbaghia cominsii Vosa |
Higher Classification | Monocotyledons |
Family | ALLIACEAE |
National Status |
Status and Criteria | Critically Endangered (Possibly Extinct) |
Assessment Date | 2011/09/26 |
Assessor(s) | A.P. Dold, C. McMaster & L. von Staden |
Justification | An extremely range-restricted species (EOO 7 km²), the known existing subpopulations of which were all destroyed as a result of a road construction project. Urgent searches are required to determine if any other wild subpopulations survive. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape |
Range | King William's Town district. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Bhisho Thornveld |
Description | Buffels Thicket. |
Threats |
| Threatened by road construction, quarrying and severe overgrazing. One subpopulation was recently destroyed by quarrying of the dolerite outcrop where it occurs for construction work on the nearby N2 Highway (C. McMaster pers. obs.). Also threatened by urban expansion around King William's Town. |
Population |
This species has been known since its description in 1979 (Vosa 1979) from an extremely small area to the west of King William's Town. Recently, the subpopulation at the type locality was destroyed as a result of construction work on the N2 (C. McMaster pers. obs.). Another potential site was also bulldozed in the same construction project (A.P. Dold pers. obs.). The only other known subpopulation, known from a historical collection, is unlikely to survive as the area on the banks of the Buffalo River has been extensively transformed and degraded as a result of urban expansion. Urgent searches are required to establish whether any wild individuals of this species survive.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Tulbaghia cominsii Vosa | VU D2 | 2011.1 | | Tulbaghia cominsii Vosa | VU D2 | Raimondo et al. (2009) | |
Bibliography |
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.
Victor, J.E. and Dold, A.P. 2003. Threatened plants of the Albany Centre of Floristic Endemism, South Africa. South African Journal of Science 99:437-446.
Vosa, C.G. 1975. The cytotaxonomy of the genus Tulbaghia. Annali di Botanica 34:104.
Vosa, C.G. 1979. Notes on Tulbaghia: 1. A new species from the eastern Cape and a list of new localities. Journal of South African Botany 45(2):127-132.
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Citation |
| Dold, A.P., McMaster, C. & von Staden, L. 2011. Tulbaghia cominsii Vosa. National Assessment: Red List of South African Plants version . Accessed on 2025/01/25 |
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