Page authors: Don Knoke, David Giblin
Gnaphalium palustre
lowland cudweed, western marsh cudweed

Distribution: Widely distributed on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and Great Plains.

Habitat: Open areas at low elevations where moist at least in spring.

Flowers: May-October

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Bees, beetles, wasps


Annual, usually much branched, 3-15 cm. tall, densely covered throughout with loose, white, woolly hairs.


Leaves alternate, broadly oblanceolate to oblong, entire, 1-3.5 mm. long and 2-10 mm. wide.


Heads in small, leafy-bracted, tight clusters, in the leaf axils and at the ends of the branches; involucre 3-3.5 mm. high, densely woolly below, the bracts brown with whitish, papery tips; corollas all tubular, the outer ones numerous, slender and pistillate, the few inner ones coarser and perfect, all whitish, becoming tan in age; receptacle naked; pappus of capillary bristles, distinct to the base.


Achenes small, nerveless.

Accepted Name:
Gnaphalium palustre Nutt.
Publication: Trans. Amer. Philos. Soc., n. s. 7: 403. 1841.

Synonyms & Misapplications:
Filaginella palustris (Nutt.) Holub
Gnaphalium heteroides Klatt
Gnaphalium palustre Nutt. var. nanum Jeps.
Additional Resources:

PNW Herbaria: Specimen records of Gnaphalium palustre in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Gnaphalium palustre checklist entry.

OregonFlora: Gnaphalium palustre information.

E-Flora BC: Gnaphalium palustre atlas page.

CalPhotos: Gnaphalium palustre photos.

USDA Plants: Gnaphalium palustre information.

48 photographs:
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