Coltsfoot blooming in a pot in Bonnefont garden. The scaly stems and bright yellow blossoms of this early-spring-blooming member of the daisy family emerge well before the foliage; the hoof-shaped leaves appear only after the flowers have set seed. This notoriously invasive Eurasian species is best grown in a container. Photograph by Carly Still
Tussilago farfara, known in the Middle Ages under the Latin names ungula caballina (”horse hoof”) and pes pulli (”foal’s foot”), is still called coltsfoot, ass’s foot, or bull’s foot in English, pas-de-poulain in French, pie d’asino in Italian, and hufflatich in German. These names all derive from the fancied resemblance of the young leaf to the foot of a quadruped. See an image of the plant in leaf. A slideshow of images of Tussilago farfara in all stages of growth is available at Arkive.org.