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Scientific Name | Brianhuntleya intrusa (Kensit) Chess., S.A.Hammer & I.Oliv. |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Mesembryanthemum intrusum Kensit, Ruschia intrusa (Kensit) L.Bolus |
National Status |
Status and Criteria | Near Threatened B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v) |
Assessment Date | 2012/12/21 |
Assessor(s) | C. Klak, D. Raimondo, N.A. Helme & L. von Staden |
Justification | A range-restricted (EOO 556 km²), but locally abundant species occurring at between 20 and 30 locations, and declining in some areas due to habitat loss to expanding vineyards. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Worcester to Robertson and McGregor. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Robertson Karoo, Breede Shale Renosterveld, Breede Alluvium Renosterveld, Muscadel Riviere |
Description | Pebbly clays on gentle, south-facing karroid scrubland. |
Threats |
| Threatened by ongoing habitat loss to vineyard and olive cultivation, with about 20% of this species' habitat already transformed. |
Population |
A range-restricted, but locally abundant species, occurring in at least 20 locations. Although threatened in places by habitat loss to expanding crop cultivation, most of its shale habitat is too shallow and rocky to plough. There are at least 5000 plants in the Vrolijkheid Nature Reserve alone, and it is further very common between McGregor and the Breede River, as well as around Montagu (N.A. Helme, pers. obs. 2012).
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Brianhuntleya intrusa (Kensit) Chess., S.A.Hammer & I.Oliv. | EN B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v) | 2012.1 | | Brianhuntleya intrusa (Kensit) Chess., S.A.Hammer & I.Oliv. | EN B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v) | Raimondo et al. (2009) | |
Bibliography |
Chesselet, P., Hammer, S. and Oliver, I. 2003. Brianhuntleya, a new genus endemic to the Worcester-Robertson Karoo, South Africa. Bothalia 33(2):160-164.
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.
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.
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Citation |
| Klak, C., Raimondo, D., Helme, N.A. & von Staden, L. 2012. Brianhuntleya intrusa (Kensit) Chess., S.A.Hammer & I.Oliv. National Assessment: Red List of South African Plants version . Accessed on 2024/12/08 |
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