Distribution: Occurring in scattered locations across Washington; southwestern British Columbia to California, east to the Great Lakes region and south-central U.S.
Habitat: Open, disturbed sites, often where moist.
Flowers: July-September
Origin: Introduced from central North America
Growth Duration: Biennial, Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Lactuca ludoviciana in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Lactuca ludoviciana checklist entry
OregonFlora: Lactuca ludoviciana information
E-Flora BC: Lactuca ludoviciana atlas page
CalPhotos: Lactuca ludoviciana photos