Can Leopard Tortoises eat Dieffenbachia?

Why

[confidence: high] [source: The Tortoise Table plant database, ASPCA toxic plant list cross-referenced with chelonian dietary guides, exotic reptile veterinary toxicology review] Dieffenbachia contains insoluble calcium oxalate raphides and proteolytic enzymes (asparagine) that cause intense oral irritation, mucosal damage, and swelling upon ingestion; for Leopard Tortoises, which are strict herbivores with no physiological tolerance for these compounds, even small amounts can cause severe oral and gastrointestinal injury. This plant is consistently flagged as toxic for chelonians.