Definitions
There is 1 meaning of the phrase
Conium Maculatum.
Conium Maculatum - as a noun
Large branching biennial herb native to eurasia and africa and adventive in north america having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonous
Synonyms (Exact Relations)
california fernhemlocknebraska fernpoison hemlockpoison parsleywinter fern