Conium maculatum
poison hemlock, cigue maculee, cigue tachetee, deadly hemlock, poison parsley, poison-hemlock, spotted parsley
Family
Apiaceae
Leaf Arrangement
alternate
Leaf Attachment
petiolate
Leaf Type
compound, pinnate
Growth Form
forb
Flower Color
white
Flower Month
May - August
Height (meters)
0.5 - 3.0
Milky Sap
No
Armed/Unarmed
Unarmed
Origin
introduced
Lifespan
biennial
Wetland Class
FACW
Field Characters
Veins in leaflets terminate at the notch between teeth, prominent calyx teeth visible on the flower and fruit; roots are a bundle of yellowish finger sized tubers. Similar to Conium maculatum that has no calyx teeth on flowers, veins that end in the point of the teeth on the leaflets, and a white tap root.
Habitat
Roadsides, fencerows, stream banks, waste places, thickets.