Habitat: Moist soil; cultivated ground, waste places.
In England, whence this plant came, it is a pest of wet meadows and is said to be poisonous; it is to be hoped that its present restricted range in this country may not enlarge. Scapes stout, very scaly, six to eighteen inches tall. Heads in crowded, racemose clusters, each about a half-inch broad, on very short pedicels, pinkish purple, fragrant, the florets all tubular; they are dioecious, the staminate heads being smaller than the fertile ones. Leaves appearing late, often more than a foot broad when mature, rounded heart-shaped, thick, green and smooth above, white-woolly beneath, irregularly but sharply toothed, with stout petioles. (Fig. 349.)
Means of control the same as for Tussilago.