Poison Hemlock
Conium maculatum
Family: Apiaceae (Carrot family)Native: Europe and North AfricaIdentified: Apr 5, 2026
A biennial herbaceous plant with finely divided, fern-like, bright green foliage and hollow, hairless stems usually spotted with purple. It produces small white flowers in umbrella-like clusters.
Learn more about Poison Hemlock in the encyclopedia →Care instructions
This plant is highly invasive and extremely toxic; it is not recommended for cultivation. If handling for removal, use heavy gloves, long sleeves, and protective eyewear to avoid contact with the sap or alkaloids.