Page author: David Giblin
Tanacetum parthenium
featherfew, feverfew

Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to Nevada, east to the Rocky Mountains.

Habitat: Roadsides, fields, wastelots, and other distrubed areas at low elevations.

Flowers: June-November

Origin: Introduced from Europe

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, wasps, moths


Highly aromatic, branching perennial, 2-8 dm. tall, covered with fine, white-woolly hairs.


Leaves yellow-green, once or twice pinnate, the segments broad.


Heads in few-flowered umbels at the ends of the branches; disk 10-25 mm. wide; ray flowers white, occasionally wanting, 4-10 mm. long and nearly as wide; disk flowers numerous, yellow.

Accepted Name:
Tanacetum parthenium (L.) Sch. Bip.
Publication: Tanaceteen. 55. 1844.

Synonyms & Misapplications:
Chrysanthemum parthenium (L.) Bernh. [HC]
Additional Resources:

PNW Herbaria: Specimen records of Tanacetum parthenium in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Tanacetum parthenium checklist entry

OregonFlora: Tanacetum parthenium information

E-Flora BC: Tanacetum parthenium atlas page

CalPhotos: Tanacetum parthenium photos

13 photographs:
Group by