[Members of the Sunflower family with Button-like (Disciform) Flower Heads in the Columbia River Gorge]
Cottonroses, Filagos in the Columbia River Gorge of Oregon and Washington
The Genus Logfia (Filago)
Field Cotton-rose, Field Filago, Cudweed: Logfia arvensis (Synonyms: Filago arvensis, Oglifa arvensis)