The flowering or seed parts of perilla mint contain the highest concentration of perilla ketone, considered the most toxic agent involved. … Ingestion of perilla mint causes “acute respiratory distress syndrome”, a sudden and dramatic onset of severe breathing difficulty. Affected animals are frequently found dead.

Is perilla mint toxic to sheep?

Perilla mint causes more cattle deaths in Tennessee than any other toxic plant. Perilla is very poisonous to cattle and other ruminants, as well as horses. All plant parts are toxic, especially the flowering structures.

Is perilla mint poisonous to dogs?

Symptoms of Senna ingestion include diarrhea, wobbliness, weakness and dark urine. Ruminants are primarily affected by ingesting Perilla mint, and symptoms include respiratory distress. If you suspect your pet or horse has ingested something harmful, contact your veterinarian immediately.