Page authors: Don Knoke, David Giblin
Tanacetum balsamita
costmary
WTU specimens
Other herbaria
WTU images

Distribution: Occurring scattered locations on both sides of the Cascades crest in Washington; southern British Columbia to California, east across much of North America to the Atlantic Coast.

Habitat: Roadsides and other waste places.

Flowers: August-September

Origin: Introduced from Asia

Conservation Status: Not of concern

Description:
General:

Coarse, fragrant perennial, the stem 5-12 dm. tall, glabrous below but with appressed, aligned hairs above.

Leaves:

Basal leaves elliptic or broadly oblanceolate with rounded teeth, the blade 10-25 cm. long and 2.5-8 cm. wide, with a petiole of similar length; cauline leaves smaller and sessile; leaves silky when young, becoming glabrate.

Flowers:

Basal leaves elliptic or broadly oblanceolate with rounded teeth, the blade 10-25 cm. long and 2.5-8 cm. wide, with a petiole of similar length; cauline leaves smaller and sessile; leaves silky when young, becoming glabrate.

Fruits:

Achenes sub-terete, 10-ribbed.

Accepted Name:
Tanacetum balsamita L.
Publication: Sp. Pl. 2: 845. 1753.

Synonyms & Misapplications:
Balsamita major Desf.
Chrysanthemum balsamita (L.) Baillon [HC]
Additional Resources:

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

WA Flora Checklist: Tanacetum balsamita checklist entry.

E-Flora BC: Tanacetum balsamita atlas page.

CalPhotos: Tanacetum balsamita photos.

USDA Plants: Tanacetum balsamita information.

11 photographs:
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