Aunt lucy is moderately toxic and can induce allergic reactions in humans, dogs, and cats upon touch or ingestion. All parts of aunt lucy contain pyrrolizidine alkaloids causing liver damage and severe symptoms like nausea, jaundice, and pain. Humans may experience dermatological reactions, while animals may show gastrointestinal upset, lethargy, liver failure, or neurological signs. Immediate veterinary care is crucial for poisoning cases in pets.