Page authors: Don Knoke, David Giblin
Pseudognaphalium stramineum
cotton batting cudweed

Distribution: Widely distributed on both sides of the Cascades crest in Washington; British Columbia to California, east to the Great Plains of the U.S.; also in scattered states along the Atlantic Coast.

Habitat: Open, usually moist places, often in disturbed soil.

Flowers: June-October

Origin: Native

Growth Duration: Annual, Biennial

Conservation Status: Not of concern

Pollination: Bees, flies, beetles, wasps


Woolly annual or biennial, the several stems 2-7 dm. tall.


Leaves alternate, numerous, broadly oblanceolate or occasionally oblong or lanceolate, up to 10 cm. long, auriculate at the base.


Heads numerous, grouped in one or a few dense glomerules, the involucres with a yellowish cast, 4-7 mm. high, woolly at the base; corollas all tubular, whitish, the outer slender and pistillate, the few inner ones coarser and perfect; pappus of capillary bristles, distinct, falling separately.


Achenes nerveless.

Accepted Name:
Pseudognaphalium stramineum (Kunth) Anderb.
Publication: Opera Bot. 104: 148. 1991.

Synonyms & Misapplications:
Gnaphalium chilense Spreng. [HC]
Gnaphalium stramineum Kunth
Pseudognaphalium stramineum (Kunth) W.A. Weber, invalid name
Additional Resources:

PNW Herbaria: Specimen records of Pseudognaphalium stramineum in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Pseudognaphalium stramineum checklist entry

OregonFlora: Pseudognaphalium stramineum information

E-Flora BC: Pseudognaphalium stramineum atlas page

CalPhotos: Pseudognaphalium stramineum photos

28 photographs:
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