Page authors: Don Knoke, David Giblin
Filago arvensis
field cottonrose, field filago
Specimens
Photos

Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to Oregon, east to the northern Rocky Mountains, northern Great Plains, and Great Lakes region

Habitat: Dry meadows, fields, roadsides, and other disturbed, open areas at low to middle elevations.

Flowers: July-September

Origin: Introduced

Conservation Status: Not of concern

Description:
General:

White-woolly annual, the simple or branching stem 0.3-5 dm. tall.

Leaves:

Leaves alternate, entire, erect, linear, up to 4 cm. long and 5 mm. wide.

Flowers:

Inflorescence elongate, the heads 3-5 mm. high, in tight clusters; involucre bracts few, but woolly, concave bracts on the receptacle resemble an involucre; flowers whitish, the outer several series pistillate, fertile, without pappus and subtended by the bracts; the inner flowers sterile, few, without bracts but with capillary pappus.

Fruits:

Achenes small, nerveless.

Accepted Name:
Filago arvensis L.
Publication: Sp. Pl. 2: add. 1753.

Synonyms & Misapplications:
Logfia arvensis (L.) Holub [FNA19]
Oglifa arvensis (L.) Cass.
Additional Resources:

PNW Herbaria: Specimen records of Filago arvensis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Filago arvensis checklist entry.

E-Flora BC: Filago arvensis atlas page.

CalPhotos: Filago arvensis photos.

USDA Plants: Filago arvensis information.

22 photographs:
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