Summary[
edit] Description: English: Plate 135-A. Viola sororia Willd. var. sororia - Common blue violet, Woolly blue violet, Hairy blue violet, Downy blue violet, Hooded blue violet, Common violet, Sister violet. Date: 1918. Source:
Wild Flowers of New York Part 1, University of the State of New York, State Museum, Albany.. Author: Homer D. House, New York State Botanist. Walter B. Starr of the Matthews-Northrup Company, Buffalo, and Harold H. Snyder of the Zeese-Wilkinson Company, New York, photographers.