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

Spiraea stevenii (C.K. Schneid.) Rydb.
Steven's spirea (beauverd spirea)
Rosaceae (Rose family)

Introduction to Vascular Plants

© Alfred Cook  Email the photographer   (Photo ID #11299)

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Distribution of Spiraea stevenii
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Species Information

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Low shrub, 20-50 (80) cm tall, from long creeping rhizome; stems erect to spreading, with thin wiry branches, the young growth hairy.
Alternate, deciduous, short-stalked, oblong-elliptic to narrowly egg-shaped, 1.5-4 cm long, shallowly toothed most of their length, green and smooth above, paler and smooth or short-hairy below.
Inflorescence a branched, nearly flat-topped to half-rounded, terminal cluster of several to many small flowers; corollas white, the petals 5, nearly circular, about 2 mm long; calyces hairy on the outside, 5-lobed, the lobes triangular, eventually reflexed, about 1 mm long; ovaries superior; stamens numerous.
Follicles, usually 5, about 3 mm long, beaked, somewhat leathery, short-hairy; seeds several, spindle-shaped.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to wet streambanks, meadows and thickets in the montane to alpine zones; amphiberingian, locally frequent in extreme NW BC; N to AK, YT and NT; NE Asia.

Source: The Illustrated Flora of British Columbia


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Spiraea beauverdiana auct. non C.K. Schneid.
Spiraea beauverdiana var. stevenii C.K. Schneid.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References