By grrlscientist on July 5, 2008. tags: White Ash Tree, Fraxinus americana, tree bark, Image of the Day Bark of the white ash tree, Fraxinus americana. Image: GrrlScientist 2008 [larger view]. Tags image of the day my pictures Photography Fraxinus americana tree bark White Ash Tree image of the day my pictures Photography More like this Tracking Invasive Plant Species from the AirHow do you track the relative contributions of
