Plants Poisonous To Horses

Oleander
Diarrhea, colic, irregular heartbeat.
Roadsides, farmyards, plant cutting

Yew
Acute collapse and rapid death.
Ornamental, evergreen shrub, grows as a hedge.

Black locus – Colic, depression, convulsions.

Foxglove – Diarrhea, colic, irregular heartbeat.

Black walnut – Laminitis (founder)

Lantana – Jaundice, liver failure

Horsetail – can produce a deficiency of vitamin B. Signs of horsetail intoxication include weakness, decreased appetite, and loss of coordination

Red maple
Loss of appetite, depression, anemia, jaundice.