Bijlia dilatata H.E.K.Hartmann
|Bijlia cana N.E.Br., Bolusanthemum tugwelliae (L.Bolus) Schwantes, Hereroa cana L.Bolus, Hereroa tugwelliae in sense of L.Bolus (1927, 1928), not of L.Bolus(1930)|
Status and Criteria
|S.J. Milton & L. von Staden|
|A range-restricted species (EOO 260 km²), occurring at three to five locations and declining due to ongoing habitat loss and degradation.|
|South African endemic|
Habitat and Ecology
|Prince Albert Succulent Karoo, Southern Karoo Riviere|
|Flat areas covered by decomposed dolerite and quartzitic pebbles.|
|This species is predominantly threatened by grazing. Field studies have shown a 75% decrease in plant density in grazed areas, and that plant density remains low even after areas have been left ungrazed for 15 years (S.J. Milton, unpublished data). This species relies on nurse-effects of larger shrubs to survive and reproduce, and in areas where overgrazing has reduced shrub cover, plants in exposed localities die off in years of drought. Road construction, borrow pits, erosion and urban expansion are also causing ongoing habitat loss around Prince Albert.|
This species is declining across its range due to habitat loss and degradation, except for a 120 ha private nature reserve established to protect part of the population.
Status and Criteria
Citation/Red List version
|Bijlia dilatata H.E.K.Hartmann||Least Concern ||Raimondo et al. (2009)|
Hartmann, H.E.K. 1992. A new name for Bijlia cana (Mesembryanthema). Cactus and Succulent Journal (USA) 64(4):173-180.
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.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
|Milton, S.J. & von Staden, L. 2015. Bijlia dilatata H.E.K.Hartmann. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/05/22|