Grows up to 3 feet tall, spreads readily. Leaves are toothed ovate to lanceolate, with paired blue flowers just above the leaves on one side of the slender, square branching stem.2,16 The seed pods look like little lipped bells1 or “caps”.

The plant is native to North America, perennial and hardy to Zone 4. It thrives in fertile soil with plenty of water in partial shade or full sun16 For peak medicinal activity, the entire herb above ground should be harvested when it begins to flower in the summer and then dried.16