Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the northern Great Plains and Ontario.
Habitat: Sphagnum bogs at moderate elevations to damp alpine meadows and bogs.
Flowers: June-September
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees
Low, evergreen shrub from short rhizomes, seldom over 1 dm. tall, the young stems puberulent, soon becoming glabrous.
Leaves opposite, leathery, entire, dark green above and grayish below, short-petiolate, oblong-lanceolate to linear-elliptic, 1-2 cm. long and less the half as broad.
Flowers terminal on the shoots, long-pedicellate in a leafy-bracted, several-flowered inflorescence; calyx deeply 5-parted, the lobes ovate, 2-3 mm. long; corolla united, 5-lobed, shallowly bowl-shaped, up to 12 mm. broad, deep pinkish-rose; stamens 10, the anthers recessed in grooves in the corolla in the bud; style slender, straight, equaling the stamens; ovary superior.
Capsule 5-celled, sub-globose, 2-3 mm. long.
PNW Herbaria: Specimen records of Kalmia microphylla var. microphylla in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Kalmia microphylla var. microphylla checklist entry
OregonFlora: Kalmia microphylla var. microphylla information
E-Flora BC: Kalmia microphylla var. microphylla atlas page
CalPhotos: Kalmia microphylla var. microphylla photos