What plant is that?

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Photo credits: © Francis R. Underwood 2015

The mystery plant for July is a shrub with deeply divided rose-purple flowers and alternate, hairy leaves.  This shrub blooms in mid to late spring. It has alternate, entire  and deciduous leaves which are opening at about the same time as the flowers are blooming.  The delicate flowers are divided almost to the base into 3 segments or lips. The upper lip is shallowly 3 -lobed and the lower lip is divided into two long and narrow petals.  The 10 stamens are almost as long as the flower segments.  This shrub grows to about 3 to 4 feet tall and blooms between the middle of May to the middle of July.  It grows in bogs or wet woods and is relatively uncommon in Rhode Island.

It’s. . .