2 species
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Jacobaea maritimasilver ragwort
Distribution: Occurring west of the Cascades crest in lowland western Washington; southern British Columbia to northwestern Oregon.
Habitat: Coastal bluffs, roadsides, wastelots, and other disturbed areas at low elevations.
Origin: Introduced from Mediterranean region
Flowers: June-September
Jacobaea vulgaristansy ragwort
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, east to Idaho and Montana; also in northeastern North America.
Habitat: Roadsides, fields, pastures, forest edges, wastelots, and other disturbed areas.
Origin: Introduced from Eurasia
Flowers: June-September