Grassland communities of rocky outcrops in the northern Orange Free State

An analysis of the grassland vegetation of the rocky outcrops of the Heilbron–Lindley–Warden–Villiers area, northern Orange Free State, is presented. Relevés were compiled in 42 stratified random sample plots. A Twinspan classification, refined by Braun-Blanquet procedures, revealed four plant communities. This was confirmed by the ordination of the plant communities. All communities could be related to specific environmental conditions. A hierarchical classification and phytosociological description of the plant communities are presented