Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to the Great Plains.
Habitat: Dry, often sandy places in the foothills and plains.
Flowers: May-October
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees, flies, beetles, wasps
Perennial from a taproot and stout, branching base, the several stems 1-9 dm. tall, somewhat white-woolly toward the base.
Leaves tufted at the base, once or twice pinnatifid, with linear segments; cauline leaves similar but few and reduced.
Heads several in an open inflorescence; involucre 7-10 mm. high, the bracts broad, papery, pale yellowish above and greenish below; flowers all tubular and perfect, yellow, the lobes shorter than the tube; pappus of several translucent scales not over 1 mm. long.
Achenes narrow and elongate, 4- angled.
PNW Herbaria: Specimen records of Hymenopappus filifolius in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Hymenopappus filifolius checklist entry
OregonFlora: Hymenopappus filifolius information
E-Flora BC: Hymenopappus filifolius atlas page
CalPhotos: Hymenopappus filifolius photos