Conium maculatum L.  
Family: Apiaceae
poison-hemlock
Conium maculatum image
Merel R. Black  
Etymology: Conium: derived from ancient Greek name coneion for hemlock
Plants: erect, biennial, up to 8' tall forb; stems green with purple spots, freely branched, and hollow; all parts deadly poisonous
Leaves: not clasping the stem, 8"-16" broadly-triangular to ovate in outline, 3-4 times pinnately-divided, toothedleaf drawing
Flowers: white, 5-parted; inflorescence of many 2"-3 1/2" mostly terminal umbels often with 2-4 together from the top stem node, with age the side umbels overtop the central one; blooms June-Aug.
Fruits: dry, splitting into 2 seeds, - fruit:fruit drawing seed:seed drawing
Habitat: disturbed sites
Hazardous: Careful, this plant is hazardous!
Invasiveness: Prohibited/Restricted Invasive - Eradicate!
Conservation Status: Introduced - adventive; potentially invasive
Conium maculatum image
Emmet J. Judziewicz  
Conium maculatum image
Merel R. Black  
Conium maculatum image
Botanical Illustration  
Conium maculatum image
Emmet J. Judziewicz  
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