Yes, Tropic Snow is toxic to dogs!
Dogs accidentally consuming the Tropic Snow 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).
Tropic Snow consumption is also toxic to Cats.
Toxic Principles Of Tropic Snow: Insoluble calcium oxalates, proteolytic enzyme.
More Info About The Tropic Snow Plant
Scientific Name: Dieffenbachia amoena
Family: Araceae.
Also known as: Charming Dieffenbachia, Giant Dumb Cane, Dumbcane, Exotica, Exotica Perfection, Dieffenbachia.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.