Yellow Hawkweed

Yellow Hawkweed (Hieracium pratense) is a hairy perennial plant native to Europe. In North America, this plant has escaped cultivation and is a common weed of fields and roadsides.

The flowers are yellow, reminiscent of a dandelion, but borne on tall, very hairy stems.

It is sometimes known as the "King Devil."

Pliny the Elder wrote that hawks ate this plant to improve their vision, and it has been used as an herbal remedy for vision problems.