Hieracium longiberbe, known by the common name longbeard hawkweed, is a rare North American plant species in the tribe Cichorieae within the family Asteraceae It has been found only in the Columbia River Gorge along the border between the states of Washington and Oregon in the northwestern United States.Biota of North America Program 2004 county distribution mapWashington Flora Checklist, University of Washington Herbarium
Hieracium longiberbe is an herb up to tall, with leaves mostly on the stem rather than in a rosette at the bottom. Leaves, stems, and the bracts surrounding the flower heads are covered with long and conspicuous hairs up to long. Leaves are up to long, with no teeth on the edges. One stalk will produce 3-12 flower heads in a flat-topped array. Each head has 12-24 yellow ray flowers but no disc flowers.Flora of North America, Hieracium longiberbe Howell, 1901.
References
External links Paul Slichter, Hawkweeds of the Columbia River Gorge of Oregon and Washington, Longbeard Hawkweed, Long-bearded Hawkweed, Hieracium longiberbe several photos