also known as sago palm, is a widely cultivated cycad which is often grown outdoors in warm temperate and subtropical regions. Sago palm is highly poisonous to animals and humans if ingested.
All parts of C. revoluta
are toxic to horses. However, it's seeds contain the highest levels of the toxin cycasin, which causes gastrointestinal irritation, and in high doses, liver failure. It only takes ingestion of one or two seeds to have lethal consequences in horses.