Toxicity to pets
The leaves of the black locust plant are toxic to pets. All parts of the plant contain poisons called toxalbumins (robin, phasin, and robitin), with the seeds containing the highest concentration of these toxins.
The content of this page is not veterinary advice. A number of factors (amount of substance ingested, size of the animal, allergies, etc.) determine what is toxic to a particular pet. If you think your pet has eaten something potentially toxic, call Pet Poison Helpline or seek immediate veterinary treatment.