Appendaged waterleaf, great waterleaf (Hydrophyllum appendiculatum)
Member of the Waterleaf (Hydrophyllaceae) family. Found in rich woods during May - June. Flowers are lavender-blue, stem and leaves hairy, grows 1 - 2 feet tall. It is a common biennial that often covers large areas and produces dense clusters of one-half inch, bell-shaped blossoms displayed well above the foliage. Light colored stamens extend beyond the corolla and give the bloom head a frothy look when viewed at close range. Lower leaves are pinnately divided.
To learn more
or great waterleaf, visit its profile at the USDA Plants