Pilosella flagellaris (synonym Hieracium flagellare) is a European plant species in the tribe Cichorieae within the family Asteraceae. It is native to Europe but naturalized in scattered locations in the United States and Canada.Biota of North America Program 2004 county distribution map
Pilosella flagellaris is a small herb up to tall, with leaves mostly in a rosette at the bottom. Leaves are up to long, with no teeth on the edges. One stalk will produce 2-4 flower heads in a flat-topped array. Each head has 90–120 yellow ray flowers but no disc flowers.Flora of North America, Hieracium flagellare Willdenow, 1814.
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