|
Scientific Name | Otholobium curtisiae C.H.Stirt. & Muasya |
Higher Classification | Dicotyledons |
Family | FABACEAE |
National Status |
Status and Criteria | Endangered C2a(i) |
Assessment Date | 2014/05/14 |
Assessor(s) | O.E. Curtis, L. von Staden & D. Raimondo |
Justification | A range-restricted (EOO 394 km²), and very rare species, known from six small subpopulations. The population, estimated to number fewer than 300 mature individuals continue to decline due to ongoing habitat loss and degradation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Eastern Overberg between Bredasdorp and Heidelberg. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Eastern Ruens Shale Renosterveld, Ruens Silcrete Renosterveld, Potberg Ferricrete Fynbos |
Description | Quartzitic outcrops within Eastern Rûens Shale Renosterveld. |
Threats |
| Threatened by crop cultivation in the past, and ongoing habitat degradation as a result of livestock overgrazing and inappropriate fire management. |
Population |
Extensive surveys of suitable quartz habitat across the eastern Overberg indicate that this species is extremely rare and localized, and that subpopulations seldom consist of more than 10 plants (O.E. Curtis pers. comm. 2014). The population is estimated to number fewer than 300 mature individuals, and continues to decline due to ongoing habitat loss and degradation.
|
Population trend | Decreasing |
Conservation |
| This species is not conserved in any formally protected areas (Curtis et al. 2013). |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Otholobium curtisiae C.H.Stirt. & Muasya | EN C2a(i) | 2014.1 | |
Bibliography |
Curtis, O.E., Stirton, C.H. and Muasya, A.M. 2013. A conservation and floristic assessment of poorly known species rich quartz-silcrete outcrops within Rûens Shale Renosterveld (Overberg, Western Cape), with taxonomic descriptions of five new species. South African Journal of Botany 87:99-111.
|
Citation |
| Curtis, O.E., von Staden, L. & Raimondo, D. 2014. Otholobium curtisiae C.H.Stirt. & Muasya. National Assessment: Red List of South African Plants version . Accessed on 2025/03/27 |
Comment on this assessment
