The Christmas cactus (Schlumbergera bridgesii) is not considered toxic to humans or pets. It is a popular holiday plant that is known for its festive appearance and ease of care. It is native to the tropical forests of Brazil and is known for its brightly-colored flowers that bloom in the winter months. While the cactus is not toxic, its sharp spines can cause discomfort if handled improperly. It is important to handle the cactus with care and to keep it away from pets and young children.