Tussilago farfara When clicked, this photo will open, full size, in a new window.
This plant is a European introduction. The genus name, from the Latin tussis ("a cough"), alludes to the plant's reputation as a cure for coughs. An extract of fresh leaves can be used for making cough drops or hard candy, and its dried leaves can be steeped for a tea. Contains traces of liver-affecting pyrrolizidine alkaloids, potentially toxic in large doses.
from National Audubon Society Field Guide to Wildflowers (Eastern Region) and Peterson Field Guides Eastern/Central Medicinal Plants