Pilosella floribunda (synonym Hieracium floribundum, also known as pale hawkweed, smoothish hawkweed,[1] yellow hawkweed,[2] and yellow devil hawkweed[3]) is a species of noxious and herbaceous perennial plant from family Asteraceae that is known in Europe (particularly France)[3] and can also be found in United States and Canada.[4] It was believed that it was a hybrid of Pilosella caespitosa (Hieracium caespitosum and Pilosella lactucella (Hieracium lactucella).[1]
The plant is 10to tall. The flowers bloom from June to July, are clustered, and are wide. The leaves are hairy and spatula shaped.[2]