Distribution: Occurring west of the Cascades crest in lowland western Washington: southwestern British Columbia to California.
Habitat: Disturbed sites, roadsides, and gravel bars.
Flowers: May-July
Origin: Introduced from Europe
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Agrostis castellana in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Agrostis castellana checklist entry.
OregonFlora: Agrostis castellana information.
E-Flora BC: Agrostis castellana atlas page.
CalPhotos: Agrostis castellana photos.
USDA Plants: Agrostis castellana information.