European willows Salix atrocinerea, S. cinerea, and their hybrids with American willows
Locations in eastern MA by community 2002-2008

Other maps
  • S. atrocinerea: interactive dot map [HTML]
  • S. cinerea: interactive dot map [HTML]
  • Putative hybrids Salix bebbiana x S. atrocinerea: interactive dot map [HTML]