Yes, Schefflera is toxic to dogs!
Dogs accidentally consuming the Schefflera 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).
Schefflera consumption is also toxic to Cats.
Toxic Principles Of Schefflera: Calcium oxalate crystals.
More Info About The Schefflera Plant
Scientific Name: Schefflera
Family: Araliaceae.
Also known as: Umbrella Tree, Australian Ivy Palm, Octopus Tree, Starleaf.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.