A biennial with flowers on tall stalks arising from clump of basal leaves, flowers are tubular, to 3 inches long, purple or cream colored with spots inside. Blooms in June. Found on open woods and heaths in mountains. Best in partial sun to shade, moist soil; prefers porous but rich, moist soils; may reflower if cut back; dried leaves are the principal source of the drug, digitalis. Flowers may attract hummingbirds.