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Scientific Name | Staavia trichotoma (Thunb.) Pillans |
Higher Classification | Dicotyledons |
Family | BRUNIACEAE |
National Status |
Status and Criteria | Data Deficient - Insufficient Information |
Assessment Date | 2016/11/15 |
Assessor(s) | L. von Staden |
Justification | A rare, range-restricted and very poorly known species last recorded in the wild in 1940. It is too poorly known to assess its risk of extinction, but is possibly threatened or even extinct. It is listed as Data Deficient. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species occurs in the mountains between Villiersdorp and Genadendal. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | South Sonderend Sandstone Fynbos, Hawequas Sandstone Fynbos |
Description | Plants grow in sandstone slopes above 1000 m. |
Threats |
| This species appears to be extremely rare, and it has not been recorded in the wild in more than 70 years. The population has possibly declined - Hall et al. (1980) thought that it is extinct - but the reasons for decline is not known. Montane fynbos habitat is still intact across this species' range. It may possibly have been affected by too frequent fire. |
Population |
This species is known from only a few collections and was last recorded in the wild in 1940. Wildepaardeberg on the northern slopes of Jonaskop in the Riviersonderend Mountains is botanically very well explored, but there has been no recent collections. Staavia is taxonomically problematic, and it is possible that this species may be overlooked and misidentified as other species. It is also likely that subpopulations are very small, localized and easily overlooked.
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Population trend | Unknown |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Staavia trichotoma (Thunb.) Pillans | Extinct | Hall et al. (1980) | |
Bibliography |
Claßen-Bockhoff, R., Oliver, E.G.H., Hall, A.V. and Quint, M. 2011. A new classification of the South African endemic family Bruniaceae based on molecular and morphological data. Taxon 60(4):1138-1155.
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.
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.
Pillans, N.S. 1947. A revision of Bruniaceae. Journal of South African Botany 13:121-206.
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Citation |
| von Staden, L. 2016. Staavia trichotoma (Thunb.) Pillans. National Assessment: Red List of South African Plants version . Accessed on 2025/05/31 |
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