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

Campanula scouleri Hook. ex A. DC.
Scouler's harebell (pale bellflower)
Campanulaceae (Bellflower family)

Introduction to Vascular Plants

© Ryan Batten  Email the photographer   (Photo ID #23793)

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Distribution of Campanula scouleri
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Species Information

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Perennial herb from a branching, slender rhizome; stems lax, often curved at the base, 5-40 cm tall, glabrous to inconspicuously short-hairy.
Basal leaves egg-shaped, stalked; stem leaves alternate, sharply toothed, 1-6 cm long, progressively narrower and less stalked upwards.
Inflorescence of several terminal, loose clusters of bell-shaped flowers; corollas 8-18 mm long, blue to whitish; corolla lobes recurved, spreading, longer than the basal tube.
Capsules, roundish, 3-6 mm long, opening near the middle.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry forests, rock outcrops and talus slopes in the lowland zone; locally common on Vancouver Island and the Gulf Islands; N to SE AK and S to N CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Campanula scouleri

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) 46 309 1085
Slope Gradient (%) 0 21 135
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
20 212 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 3 6
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: CDF(20), CWH(99)

Ecological Indicator Information

A shade-intolerant, submontane to montane. Western North American forb distributed more in the Pacific than the Cordilleran region. Occurs in cool mesothermal climates on very dry to moderately dry, nitrogen-poor soils (Mor humus forms). Sporadic in open-canopy forests on strongly drained, rocky and stony, water-shedding sites; also in non-forested communities on disturbed sites. An oxylophytic species characteristic of moisture-deficient sites.

SourceIndicator Plants of Coastal British Columbia (Information applies to coastal locations only)


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 cool mesothermal.

Taxonomic and Nomenclatural Links

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General References