Bladder-senna, Colutea arborescens
Most blossoms appear April--June, but plants can continue to produce
flowers through October
Compound leaf with rounded leaflets
Banner, wing, and keel flower petals identify it as a member of the pea family
The inflated seed pods begin to appear in May; they give the plant its common name
The pods dry out over the summer, but they don't open. Mid-October photo.
Bladder-senna thicket, before and after removal, near Larch Ave.