Page author: David Giblin
Hieracium pilosella
mouse-ear hawkweed

Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to Oregon; also in northeastern North America.

Habitat: Roadsides, dry prairies, quarries, lawns, railroads, and other disturbed, open sites.

Flowers: April-August

Origin: Introduced from Europe

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies, beetles, wasps


[none provided]

Accepted Name:
Hieracium pilosella L.
Publication: Sp. Pl. 2: 800. 1753.

Synonyms & Misapplications:
Hieracium pilosella L. var. nivea Muell.Arg. [KZ99]
Hieracium pilosella L. var. pilosella [KZ99]
Pilosella officinarum F.W. Schultz & Sch. Bip.
Additional Resources:

PNW Herbaria: Specimen records of Hieracium pilosella in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Hieracium pilosella checklist entry

OregonFlora: Hieracium pilosella information

E-Flora BC: Hieracium pilosella atlas page

CalPhotos: Hieracium pilosella photos

12 photographs:
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