Keywords: Symphyotrichum boreale NRCS.jpg en Symphyotrichum boreale Torr A Gray Á Löve D Löve northern bog aster 1989 http //plants usda gov/java/profile symbol SYBO2 USDA NRCS PLANTS Profile Symphyotrichum boreale Torr A Gray Á Löve D Löve Robert H Mohlenbrock USDA SCS 1989 Midwest wetland flora Field office illustrated guide to plant species Midwest National Technical Center Lincoln Courtesy of USDA NRCS Wetland Science Institute This image is not copyrighted and may be freely used for any purpose Please credit the artist original publication if applicable and the USDA-NRCS PLANTS Database The following format is suggested and will be appreciated Robert H Mohlenbrock USDA-NRCS PLANTS Database / USDA SCS 1989 Midwest wetland flora Field office illustrated guide to plant species Midwest National Technical Center Lincoln PD-USGov Uploaded with UploadWizard Symphyotrichum boreale Photographs by Robert H Mohlenbrock |