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

Erigeron pallens Cronquist
pale fleabane; purple daisy
Asteraceae (Aster Family)

Introduction to Vascular Plants

© Lori Skulski  Email the photographer   (Photo ID #27003)


Distribution of Erigeron pallens
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Species Information

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Illustration SourceThe Illustrated Flora of BC

General:
Perennial herb from a diffuse, slenderly-branching stem-base; stems ascending, usually solitary, simple, finely glandular and more or less long-hairy, 1-10 cm tall.
Leaves:
Basal leaves oblanceolate to spoon-shaped, sparsely to moderately long-hairy, often more or less glabrous with maturity, sometimes obscurely glandular, 0.5-3 cm long, 1-5 mm wide, some of them 3-lobed at the tips, the lobing more common in S BC; stem leaves similar, few or lacking, greatly reduced.
Flowers:
Heads with ray and disk flowers, disks 6-15 mm wide; involucres 5-10 mm tall; involucral bracts glandular long-hairy, the multicellular hairs often with purplish crosswalls, subequal, with long-pointed tips, green, yellowish or purplish towards the tips; ray flowers 50-90, white, purplish or pinkish, 4-5 mm long, 0.5-0.9 mm wide; disk flowers 3.5-5 mm long.
Fruits:
Achenes 2-nerved, sparsely to moderately short-hairy; pappus simple or rarely double, the inner pappus of 25-40, white or sometimes reddish-purple tinted bristles, these equal to or surpassing the disk flowers by 1 mm, the outer pappus lacking or of inconspicuous scales.
Notes:
Douglas (1989, 1995) placed Erigeron pallens in synonymy under E. purpuratus Greene after examining large amounts of material from N BC and the YT. More recently, material from extreme N AK has been recognized as different from the more southern E. pallens and should be recognized as E. purpuratus (D.F. Murray, pers. comm.).

SourceThe Illustrated Flora of British Columbia

Ecology

Ecological Framework for Erigeron pallens

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, 2008)

Site Information
Value / Class

Average

Minimum

Maximum

Elevation (metres)
1738 950 2221
Slope Gradient (%)
18.7 0 58

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

211.5 22 255
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
3.0 0 7
Modal Nutrient Regime
Class
Medium
Number of field plots
 species was recorded in:
7
Modal BEC Zone Class
BWBS

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

AT(1), BWBS(1), ESSF(1)

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.

Habitat / Range

Dry scree and talus slopes in the alpine zone; frequent throughout most of BC; N to AK, YT and NT and E to AB.

SourceThe Illustrated Flora of BC

Synonyms and Alternative Names

Erigeron purpuratus
Erigeron purpuratus subsp. pallens (Cronquist) G.W. Douglas, nom. nud.

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References