Woolly sunflower is an attractive wildflower, with woolly-haired herbage and bright yellow flower heads. The upper stem leaves are linear, but the lower leaves are pinnately dissected. The leaves range from 1-8 cm long. The leaves and stems are covered with gray, woolly hairs.
Woolly sunflower has numerous flower heads, each with a dime-sized yellow central disk surrounded by 8-14 yellow ray flowers. A common plant of drier, often rocky slopes. Flowers from May to August.
Variety lanatum has large heads, with the involucre 9-12 mm in height, and the rays about 1- 2 cm in length. The number of rays ranges from 8- 13. The leaves are entire to pinnatified. This variety ranges from 10- 60 cm tall. It is found west of the Cascade crest as well as along the eastern edge of the Cascades, and may be found sporadically through southeastern Washington, northeastern Oregon, central Idaho, and extreme western Montana.
Variety integrifolium is shorter (10- 25 cm in height) than variety lanatum. It has alternate leaves which are entire or trilobate at the tips. It is found exclusively east of the Cascade crest.
Open, dry places from the lowlands to above timberline.
Found from southern British Columbia, mostly east of the Cascade and Sierra Nevada summits to southern California, east to western Montana, southeast Idaho, and northeast Nevada.