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

Vaccinium uliginosum subsp. occidentale L. (A. Gray) Hulten
bog blueberry
Ericaceae (Crowberry family)

Introduction to Vascular Plants
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E-Flora BC Static Map
Distribution of Vaccinium uliginosum subsp. occidentale
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Species Information

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Low, spreading shrub; stems 10-30 cm tall, not angled; young branches yellowish-green, minutely hairy; old branches greyish-red.
Alternate, deciduous, from broadly egg-shaped to oval or elliptic, 0.4-3 cm long, 0.2-1.5 cm wide, rounded at tips, tapered at base, glabrous or minutely hairy, green above, lower surfaces pale or with slight bloom, strongly net-veined, margins entire, rolled under somewhat.
Clusters of 1-4, in leaf axils; corollas pink, egg- to urn-shaped, 5-6 mm long, 4- to 5-lobed, the lobes curled back; calyces deeply 4- to 5-lobed, persistent on mature fruit; filaments glabrous; anthers awned, the pore-bearing terminal tubes about equaling the pollen sacs.
Berries, globe-shaped, 5-8 mm wide, blue, with a bloom; edible and sweet.
Two subspecies are recognized in BC:

1. Leaves hairy................. ssp. pubescens (Wormsk. ex Hornem.) S.B. Young

1. Leaves glabrous or minutely hairy........................ ssp. occidentale (A. Gray) Hult.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Bogs, dry to wet rocky tundra, meadows, thickets and boggy forests in the lowland to alpine zones; frequent in coastal BC (ssp. occidentale), and in N BC (ssp. pubescens); circumboreal, N to AK, YT, and NT, E to NF and S to N MI, NY, and N CA; Eurasia.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Vaccinium uliginosum ssp. occidentale

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




Elevation (metres) 190 1593 2170
Slope Gradient (%) 0 19 60
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
20 181 350
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 2 7
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: AT(2), BAFA(8), CWH(1), IMA(1), SBPS(1), SWB(4)


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

Vaccinium salicinum

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References