Yes, Cornstalk Plant is toxic to dogs!
Dogs accidentally consuming the Cornstalk Plant 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).
Cornstalk Plant consumption is also toxic to Cats.
Toxic Principles Of Cornstalk Plant: Saponins.
More Info About The Cornstalk Plant Plant
Scientific Name: Dracaena fragrans
Family: Agavaceae.
Also known as: Corn Plant, Dracaena, Dragon Tree, Ribbon Plant.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.