10.2-20.4 cm (4-8in) perennial with rounded, toothed leaves. Base of leaf is heart-shaped. Flowers appear before leaves in March and April, often through snow. Flowers are yellow. Stalks are reddish.
Found in open fields. Ranges from Canada to New Jersey and west to Minnesota. Invasive alien.
Uses and Parts Used
Leaves used in tea as expectorant for sore throat, cough, asthma, and bronchitis. Leaves can be smoked for treatment of lung ailments.
Approved in Germany for treatment of inflamed mucous membranes and respiratory ailments, however large doses or long term use may be toxic.