Three varieties are recognised, the nominate "Betula pubescens" var. The larvae feed on "Betula pendula" and "Betula pubescens". Silver birch ("Betula pendula") was more affected than downy birch ("Betula pubescens"). The larvae feed on "Betula pubescens" and "Betula pendula". Silver birch can easily be confused with the similar downy birch ("Betula pubescens"). Grasslees Wood is dominated by sessile oak ("Quercus petraea") with some birch ("Betula pubescens"). The peat bog contains trees ("Pinus sylvestris" and "Betula pubescens" (downy birch)) and Ericaceae. Caucasian downy birch (Betula pubescens) and European rowan (Sorbus aucuparia). Silver Birch ("Betula pendula"), White Birch ("Betula pubescens"), etc. "Betula pubescens" has a wide distribution in northern and central Europe and Asia. In Greenland, it grows in association with white birch ("Betula pubescens").