Coltsfoot (Tussilago farfara) is a perennial herb in the Asteraceae family. Native to Europe and parts of Asia and naturalized in other regions, it is known for sending up bright yellow flowers before its broad hoof-shaped leaves appear. The leaves and flowers are the parts traditionally used.
In older European herbal traditions, coltsfoot was well known in teas and other preparations associated with the throat and respiratory tract. It became one of the classic herbs in this area of traditional use.
The plant often grows in damp, disturbed ground and can spread vigorously by rhizomes, making it persistent once established.

