Hieracium longiberbe

{{Short description|Species of flowering plant}}

{{Speciesbox

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| genus = Hieracium

| species = longiberbe

| authority = Howell 1901

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Hieracium longiberbe, known by the common name longbeard hawkweed,{{PLANTS|id=HILO|taxon=Hieracium longiberbe|accessdate=23 July 2015}} 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.[http://bonap.net/MapGallery/County/Hieracium%20longiberbe.png Biota of North America Program 2004 county distribution map][http://biology.burkemuseum.org/herbarium/waflora/checklist.php?Taxon=Hieracium%20longiberbe Washington Flora Checklist, University of Washington Herbarium]

Hieracium longiberbe is an herb up to {{convert|50|cm|in|abbr=on}} 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 {{convert|8|mm|in|abbr=on}} long. Leaves are up to {{convert|100|mm|in|abbr=on}} 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.[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066946 Flora of North America, Hieracium longiberbe Howell, 1901. ]