Obedient Plant
(Phystostegia virginiana)

Obedient plant, or false dragonhead, prefers open, moist or wet swales, ditches, thickets and stream banks.

The blossoms are long-lasting as cut flowers.  They are especially easy to arrange because flowers pushed to face a different direction will stay in their new positions obediently.

The true dragonhead is found in Eurasia.  The flower was thought to resemble the open mouth of a dragon.  The very similar native American plant was discovered later and called the false dragonhead.