© Alfred Cook (Photo ID #11299)
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.
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia
Synonyms and Alternate Names:
Spiraea beauverdiana auct. non C.K. Schneid.
Spiraea beauverdiana var. stevenii C.K. Schneid.