Hieracium Pilocella is a species of plant commonly known as "Hawkweed Mouse-ear". It is a member of the Asteraceae family and is native to Europe. "Hawkweed Mouse-ear" is a popular name for the plant, but there are several other synonyms that refer to this species. Some of these include Hieracium caesium, Hieracium pilosum, and Prenanthes hieracioides. The plant is characterized by its fluffy leaves and daisy-like yellow flowers, which bloom in the summer months. Overall, "Hawkweed Mouse-ear" is an interesting plant that boasts many synonyms, all of which can help botanical enthusiasts learn more about this intriguing species.