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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General:
Low shrub, 20-50 (80) cm tall, from long creeping rhizome; stems erect to spreading, with thin wiry branches, the young growth hairy.
Leaves:
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.
Flowers:
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.
Fruits:
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

Climate

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

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General References