Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Montana and Colorado.
Habitat: Swamps, lake margins and damp meadows, from sea level to the subalpine.
Flowers: June-August
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, flies
Erect, deciduous, freely-branching shrub 1-2 m. tall, the young growth somewhat woolly, the older bark brown.
Leaf blades oblong-elliptic to oblong-obovate, 4-10 cm. long, dark green and glabrous above, much paler and woolly beneath, remotely serrate on the upper half.
Inflorescence an elongate panicle, 6-20 cm. long, several times as long as broad, oblong to conic; calyx finely woolly, the 5 lobes triangular, reflexed, 1 mm. long; petals pink to deep rose, obovate, 1.5-2 mm. long; stamens 25-50, the filaments pink.
Follicles shiny, glabrous, leathery, 2.5-3 mm. long.
Publication: Fl. Bor.-Amer. (Hooker) 1(4): 172. 1832.
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var. douglasii – Douglas's spiraea
Occurring mostly west of the Cascades crest in Washington; southern British Columbia to northern California. -
var. menziesii – Menzies's spiraea Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Montana and Colorado.
PNW Herbaria: Specimen records of Spiraea douglasii in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Spiraea douglasii checklist entry
OregonFlora: Spiraea douglasii information
E-Flora BC: Spiraea douglasii atlas page
CalPhotos: Spiraea douglasii photos
