Symphoricarpos occidentalis Hook.
western snowberry (wolfberry)
Caprifoliaceae (Valerian family)

Introduction to Vascular Plants

Photograph

© Bryan Kelly-McArthur     (Photo ID #87574)


Map

E-Flora BC Static Map

Distribution of Symphoricarpos occidentalis
Click here to view the full interactive map and legend

Species Information

General:
Deciduous, low, erect shrub, 0.3-1 m tall, forming extensive colonies from rhizomes or by layering; stems dark grey, with shredding bark; twigs reddish-brown, short-hairy.
Leaves:
Opposite, on stalks 3-10 mm long, elliptic or egg-shaped, mostly 2.5-8 cm long and 1.5-5 cm wide, entire or with a few blunt, irregular teeth; leaves often larger and more lobed on sterile shoots; glabrous above, hairy beneath at least along veins; similar to those of S. albus, but thicker and more leathery, and often pointed at the tip.
Flowers:
Inflorescence of short, dense cluster of few to several flowers, stalked flowers at ends of twigs and in upper leaf axils; corollas bell-shaped, pale pink, tubular below, flaring above to 5 prominent, spreading lobes that equal or are a little longer than the tubes; styles 3-8 mm long, long-hairy near the middle or sometimes glabrous, equalling or slightly exceeding the corollas; anthers 1.5-2 mm long, shorter than the filaments.
Fruits:
Berrylike drupes, clusters, white, nearly globose, 6-9 mm long; nutlets 2, each enclosing 1 seed.

SourceThe Illustrated Flora of British Columbia

Illustration

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.

USDA Species Characteristics

Flower Colour:
White
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: White
Present from Summer to Fall
Source:  The USDA

Ecology

Ecological Framework for Symphoricarpos occidentalis

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
881 75 1770
Slope Gradient (%)
20 0 100

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

151 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
3 0 6
Modal Nutrient Regime
Class
C
# of field plots
 species was recorded in:
234
Modal BEC Zone Class
IDF

All BEC Zones (# of stations/zone) species was recorded in

BG(65), BWBS(4), ICH(2), IDF(112), MS(21), PP(17), SBS(1)

Habitat and Range

Moist streambanks and lakesides in the steppe and montane zones; frequent in BC east of Coast-Cascade Mountains; N to NT, E to PQ and S to KS, MO, VT, NM and WA.

SourceThe Illustrated Flora of British Columbia