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"Poisonous" does not mean deadly. Some manifestations of toxicity are subtle. The dose, as always, determines if a plant is safe source of nutrients or a toxic hazard.

Scientific Name: Vicia spp.

Common Name: Common Vetch, Hairy Vetch, Narrow leafed vetch, purple vetch, broad beans

Species Most Often Affected: chickens, horses, humans

Poisonous Parts: seeds

Primary Poisons: beta-cyano-L-alanine

Questions possibly pertaining to Vicia spp.:

Is Crown Vetch safe to feed to horses?

Can crown vetch be harmful to horses?

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