Is skeleton weed poisonous to horses?

Skeleton weed (Chondrilla juncea) is not considered highly toxic to horses, but it can cause gastrointestinal upset if ingested in large quantities. Its sap may cause skin irritation in some animals. While it is not a primary concern for equine toxicity, it's best to prevent horses from consuming it to avoid any potential health issues. Always consult a veterinarian if you suspect your horse has ingested something harmful.