Page authors: David Giblin, Don Knoke
Andromeda polifolia
bog rosemary

Distribution: Reported to occur in northern Washington but no specimens seen; Alaska to Idaho, east across Canada, in the Great Lakes region, and in the northeastern U.S.

Habitat: Sphagnum bogs and other acidic wetlands.

Flowers: May-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Review Group 1 in Washington (WANHP)


Small, glabrous, evergreen, spreading shrubs 1-8 dm. tall.


Leaves alternate, narrowly elliptic to linear, 1.5-4 cm. long and 2-6 mm. broad, tipped with a sharp point, the leaf margins entire and revolute, the lower surface of the leaf white-glaucous.


Flowers in small, terminal umbels; pedicels 5-12 mm. long, recurved; calyx deeply cleft, widely flared, the lobes about 1 mm. long; corolla united, broadly urn-shaped, 5-8 mm. long, pinkish; stamens 10, included, the filaments flattened, hairy; anthers 2-awned, opening by terminal pores; ovary superior.


Capsule sub-globose, glabrous, 5-celled, 4-6 mm. thick.

Accepted Name:
Andromeda polifolia L.
Publication: Sp. Pl. 1: 393. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Andromeda polifolia in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Andromeda polifolia checklist entry.

OregonFlora: Andromeda polifolia information.

E-Flora BC: Andromeda polifolia atlas page.

CalPhotos: Andromeda polifolia photos.

USDA Plants: Andromeda polifolia information.

14 photographs:
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