Distribution: Occurring west of the Cascades crest along the coast of Washington; Alaska to California, east across Canada to the Great Lakes region and northeastern North America.
Habitat: Sand dunes along the coast.
Flowers: May-September
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees, flies, beetles, wasps
Stout herbaceous perennial from rhizomes, the stem 2-6 dm. tall, villous with flattened hairs.
Basal leaves well developed and larger than the cauline leaves or wanting; cauline leaves 5-20 cm. long, bi- or tri-pinnatifid, the ultimate segments blunt or rounded.
Heads several in a short, flat-topped inflorescence; involucre bracts dry, imbricate, the margins and tip scarious; disk 8-15 mm. wide; rays yellow, pistillate, short, barely surpassing the marginal disk flowers; disk flowers yellow, perfect, with 5-lobed tubular corolla; pappus a minute crown.
Achene 5-ribbed, glandular.
Publication: Tanaceteen. 48. 1844.
Tanacetum camphoratum Less.
Tanacetum douglasii DC. [HC]
PNW Herbaria: Specimen records of Tanacetum bipinnatum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Tanacetum bipinnatum checklist entry
OregonFlora: Tanacetum bipinnatum information
E-Flora BC: Tanacetum bipinnatum atlas page
CalPhotos: Tanacetum bipinnatum photos
