Poison Hemlock
Conium maculatum
Family: Apiaceae (Carrot or Parsley family)Native: Europe, North Africa, and Western AsiaIdentified: Mar 23, 2026
A tall, biennial herbaceous flowering plant with feathery, triangular, finely divided fern-like leaves. It often has purple-spotted hollow stems and clusters of small white flowers in an umbrella shape.
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 to remove it, wear gloves and protective clothing to avoid skin contact. It thrives in moist soils and waste areas.