Featherfew, Feather-few, Feverfew, Fever-few
Tanacetum parthenium
Synonym: Chrysanthemum parthenium

Feverfew blooming along Catherine Creek, Columbia River Gorge........June 26, 2010.
- 
- 
Additional close-ups of the flower heads and a stem leaf of feverfew as seen along Catherine Creek, Columbia River Gorge.........June 26, 2010.
Paul Slichter