(= Spiraea douglasii var. menziesii × Spiraea lucida)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon, east to Idaho and Montana.
Habitat: Somewhat dry forest openings, from the lowlands to the subalpine.
Flowers: June-August
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, flies
Erect to spreading, deciduous shrubs from rhizomes, 5-12 dm. tall.
Leaf blades ovate-lanceolate to oblong-lanceolate, 2-7 cm. long, crisp-puberulent beneath, from sub-entire to coarsely once or twice serrate above the middle.
Inflorescence a large, obconic panicle, 5-10 cm. broad and 1 to 2 times as long; calyx sparsely hairy, the 5 lobes triangular, 1 mm. long, reflexed; petals 5, pale pink, 2-2.5 cm. long; stamens 25-50.
Follicles leathery, glabrous to pubescent, 2.5-3 mm. long.
Publication: Pittonia 2: 221. 1892.
Spiraea tomentulosa Rydb.
PNW Herbaria: Specimen records of Spiraea ×pyramidata in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Spiraea ×pyramidata checklist entry.
OregonFlora: Spiraea ×pyramidata information.
E-Flora BC: Spiraea ×pyramidata atlas page.
CalPhotos: Spiraea ×pyramidata photos.
USDA Plants: Spiraea ×pyramidata information.
