Distribution: Occasional east of the Cascades in Washington and Oregon.
Habitat: Openings in woods at moderate elevations, sometimes in plains.
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees, flies, beetles, wasps
Perennial herb from long, thickened roots, usually with many stems from near the base, 2.5-7 dm. tall.
Leaves mostly alternate, with petioles 0.3-7 cm. long, the blades deltoid-ovate, sub-cordate, toothed, 2-11 cm. long and 1-6 cm. wide.
Heads discoid, cylindric, several to many in a sub-umbelliform inflorescence; involucre 7-12 mm. high, imbricate, striate, the outer bracts tipped with a slender appendage; corollas white, 10-40 in each head; filaments exerted, yellow; pappus of barbellate bristles.