Rogier van Vugt | profile | all galleries >> Flora of the Netherlands. >> Violet family (Violaceae) >> Key for Viola >> Side facing petals are pointed upwards >> Flowers around two cm. Petals clearly longer than the sepals. Usually purple but can in some cases be yellow >> Perrenial plant of coastal dunes with a branched horizontal rhizome. Colour variable but often purple. (Viola curtisii) | tree view | thumbnails | slideshow |