Yarrow

Also known as: Milfoil, Soilder's Woundwort, Dog Daisy Thousand Seal, Devil's Nettle, Old Man's Pepper

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Clinical Signs: Vomiting, diarrhea, colic, drooling, anorexia, dermatitis, depression
Family: Asteraceae
Scientific Name: Achillea millefolium
Toxic Principles: glycoalkaloids (achillein), monoterpenes, sesquiterpene lactones (achillin)

Source: ASPCA Toxic and Non-Toxic Plants list (dogs), scraped 2026-07-14 from https://www.aspca.org/pet-care/animal-poison-control/dogs-plant-list · view original