Are maple tree seeds toxic to dogs?

Written by tracy hodge
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Are maple tree seeds toxic to dogs?
Red maple trees are toxic to dogs. (Red Maple tree image by Mr. D from

Dog owners should educate themselves regarding poisonous plants to ensure the safety of their dog. The red maple tree is lovely and changes to vivid shades of red in the fall. However, the red maple tree and its seeds are toxic if ingested by dogs.

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Red maple trees are named for their vivid colouring and are found in swampy areas, as well as dry slopes. Red maple leaves are three to four inches long and fruit known as maple keys develop in stalks, becoming ripe in May or June. Maple keys have seeds on each end that are also red in colour.


Red maple leaves and seeds are toxic, according to Vet Ingestion of red maple leaves or seeds often causes serious illness in dogs.


Red maple poisoning in dogs causes symptoms such as lethargy, abdominal pain, loss of appetite, inflamed paws, darkened membranes of the eyes and mouth and a change in the colour of the dog's urine. According to Vet, red maple poisoning also causes impaired function of the dog's red blood cells.

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