Ordination diagram of the relevés. Ellipses circumscribing the relevés of the different communities are coloured based on the dominant life form: green = Hemicryptophytes+Geophytes+Therophytes; red = Helophytes; Blue = Phanerophytes; Orange = Hydrophytes. The numbers in black bold style refer to the four clusters highlighted in the cluster analysis of Fig. 2. Cumulative variance: Component 1 = 13.935 and Component 2 = 10.022.