Giant Hogweed

Also known as: Cow Parsnip

dog unknowncat unknownhorse unknown

Clinical Signs: Photosensitization (ulcerative and exudative dermatitis), ocular toxicity.
Family: Apiaceae
Scientific Name: Heracleum maximum
Toxic Principles: Furanocoumarins

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