Yes, Burning Bush is toxic to dogs!
Dogs accidentally consuming the Burning Bush plants can show the following clinical symptoms: Vomiting, Prolonged Depression, Incoordination, Hypersalivaton, Sleepiness Or Excitation, Dilated Pupils, Low Body Temperature, Low Blood Pressure, Coma, Seizure And Death (In Rare Cases).
Burning Bush consumption is also toxic to Cats and Horses.
Toxic Principles Of Burning Bush: Alkaloids, Cardenolides.
More Info About The Burning Bush Plant
Scientific Name: Euonymus atropurpurea
Family: Celastraceae.
Also known as: Wahoo, Spindle Tree.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.