Wild Hyssop: Simpler's Joy.
Verbena hastata. Vervain Family. July - Sept.
A plant 3 - 7 feet high, found in fields, waste places, along roadsides. Common in the United States and Canada.
Purple or violet, small, 5-lobed, blossoming in circles from the base of the flower spikes upward.
Opposite, stemmed, lance-shaped, toothed, rough; lower leaves more or less lobed.