Conium
poison-hemlock
1 species
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Conium maculatumpoison hemlock
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout North America.
Habitat: Roadsides, fields, wastelots, and other disturbed open areas, often where soil is moist.
Origin: Introduced from Europe
Flowers: April-August
Growth Duration: Biennial