Poison Hemlock

The name “poison hemlock” refers to two entirely different poisonous herbs (Conium, pictured here, and Cicuta) that if consumed, can cause convulsions, respiratory arrest, damage to the central nervous system, and death. Native to the United States and Europe, these plants range in size from 5 cm to 3 m (2 in to 10 ft).

G.A. Maclean/Oxford Scientific Films

Poison Hemlock," Microsoft® Encarta® 96 Encyclopedia. © 1993-1995 Microsoft Corporation. All rights reserved.


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