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Poisonous Plants

Pasture Plant Toxicity Resources (PDF)
Canadian Poisonous Plants Information System
Colorado Guide to Poisonous Plants
Cornell Plants Poisonous to Livestock database
Penn State Poisonous Plants Homepage
University of Wisconsin Poisonous Weeds in Pastures (article by Dr. Jerry Doll)
USDA Poisonous Plant Research Laboratory (Logan, Utah)

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