Yes, Alocasia is toxic to dogs!
Dogs accidentally consuming the Alocasia 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).
Alocasia consumption is also toxic to Cats and Horses.
Toxic Principles Of Alocasia: Insoluble calcium oxalates.
More Info About The Alocasia Plant
Scientific Name: Alocasia spp.
Family: Araceae.
Also known as: Elephant’s Ear.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.