Page authors: Don Knoke, David Giblin
Tanacetum bipinnatum
camphor tansy, dune tansy

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

Conservation Status: Not of concern


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.

Accepted Name:
Tanacetum bipinnatum (L.) Sch. Bip.
Publication: Tanaceteen. 48. 1844.

Synonyms & Misapplications:
Tanacetum bipinnatum (L.) Sch. Bip. ssp. huronense (Nutt.) Breitung
Tanacetum camphoratum Less.
Tanacetum douglasii DC. [HC]
Additional Resources:

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

WA Flora Checklist: Tanacetum bipinnatum checklist entry.

E-Flora BC: Tanacetum bipinnatum atlas page.

CalPhotos: Tanacetum bipinnatum photos.

USDA Plants: Tanacetum bipinnatum information.

8 photographs:
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