found: WWW.British-trees.com website, Mar. 9, 2007(Downy Birch (Betula pubescens))
found: Wikipedia.org website, Mar. 9, 2007(Downy Birch (Betula pubescens) is a species of birch, native and abundant throughout northern Europe, Iceland, northern Asia and also Greenland; It is also known as: White Birch, European White Birch or Hairy Birch)
found: Plants.usda.gov website, Mar. 9, 2007(Betula pubescens (common name: Downy birch); family: betulaceae)
found: ITIS search, July 13, 2007(Betula pubescens Ehrh., syn.: Betula alba, common name: downy birch)
found: GRIN taxonomy for plants, July 13, 2007(Betula pubescens Ehrh., common names: downy birch, white birch, syn.: Betula alba)
found: A-Z encyc. of garden plants, 2004(Betula pubescens, downy birch)
found: Hortus 3(Betula pubescens, Betula odorata)
found: Complete encyc. of trees & shrubs, 2003(Betula pubescens, downy birch)