E-Flora BC: Electronic Atlas of the Flora of British Columbia

Spiraea x pyramidata
pyramid spirea
Rosaceae (Rose family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #6426)

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Distribution of Spiraea x pyramidata
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Species Information

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General:
Low shrub, 30-100 cm tall, from a creeping rhizome; stems erect to spreading, with thin wiry branches, usually fine-hairy above, but especially among the flowers.
Leaves:
Alternate, deciduous, short-stalked, narrowly egg-shaped to lance-oblong, 2-9 cm long, usually coarsely toothed above the middle, smooth to short-hairy, at least beneath.
Flowers:
Inflorescence a branched, dense, broadly conic, terminal cluster of numerous small flowers, the cluster 1 to 2 times as long as broad, the branches usually fine-hairy; corollas pale pink to whitish, the petals 5, circular, 2-2.5 mm long; calyces sparsely hairy on the outside, 5-lobed, the lobes triangular, bent back, about 1 mm long; ovaries superior; stamens numerous.
Fruits:
Follicles, fine-hairy to smooth.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to moist open forests, edges of forests and wetlands, thickets, gullies and clearings in the montane zone; locally frequent throughout BC east of the Coast-Cascade Mountains and S of 56degreeN; S to ID and N OR.

Source: The Illustrated Flora of British Columbia

Synonyms and Alternate Names

Spiraea pyramidata Greene

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References