Distribution: Occurring east of the Cascades crest in Washington;
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Flowers: May-July
Origin: Introduced
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Calamovilfa gigantea in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Calamovilfa gigantea checklist entry
OregonFlora: Calamovilfa gigantea information
E-Flora BC: Calamovilfa gigantea atlas page
CalPhotos: Calamovilfa gigantea photos