Page author: David Giblin
Betula pumila
bog birch, swamp birch

Distribution: Occurring chiefly west of the Cascades crest in Washington; Yukon Territory to Oregon, east to northern Idaho and western Montana, east to the Atlantic.

Habitat: Wet places, often in swamps and bogs.

Flowers: April-June

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


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Accepted Name:
Betula pumila L.
Publication: Mant. Pl. 124. 1767.

Synonyms & Misapplications:
Betula borealis Spach
Betula glandulifera (Regel) B.T. Butler
Betula glandulosa Michx. var. glandulifera (Regel) Gleason
Betula glandulosa Michx. var. hallii (Howell) C.L. Hitchc. [HC, VPBC]
Betula hallii Howell
Betula nana L. var. glandulifera (Regel) B. Boivin
Betula pubescens Ehrh. ssp. borealis (Spach) A. Löve & D. Löve
Betula pumila L. f. hallii (Howell) Brayshaw [VPBC, VPBC]
Betula pumila L. var. glabra Regel
Betula pumila L. var. glandulifera Regel [VPBC1, KZ99, FNA3]
Betula pumila L. var. renifolia Fernald
Additional Resources:

PNW Herbaria: Specimen records of Betula pumila in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Betula pumila checklist entry.

E-Flora BC: Betula pumila atlas page.

CalPhotos: Betula pumila photos.

USDA Plants: Betula pumila information.

5 photographs:
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