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

Gnaphalium uliginosum L.
marsh cudweed
Asteraceae (Aster family)

Introduction to Vascular Plants

© Bryan Kelly-McArthur  Email the photographer   (Photo ID #83736)

E-Flora BC Static Map
Distribution of Gnaphalium uliginosum
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Species Information

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Annual or biennial herb from a fibrous root; stems usually much branched from near the base, glandular-hairy, 3-25 cm tall.
Basal leaves mostly lacking; stem leaves alternate, entire, linear to linear-oblanceolate, closely white or greyish woolly-hairy, unstalked, 0.8-5 cm long, 1-4 mm wide.
Heads disciform, in large, leafy-bracted, usually terminal clusters, densely woolly-hairy at the base; involucres 2-3 mm tall; involucral bracts egg-shaped to lanceolate or lance-linear; discoloured, greenish or brownish.
Achenes nerveless, glabrous or with nipple-like projections; pappus bristles distinct and falling separately.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to mesic streambanks, lakeshores and waste places in the lowland, steppe and montane zones; common in S BC; introduced from Europe.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Gnaphalium uliginosum

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) 690 707 725
Slope Gradient (%) 0 0 0
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 5 5
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: SBS(2)


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

Filaginella uliginosa (L.) Opiz
Gnaphalium grayi A. Nelson & J.F. Macbr.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References