Braken fern, hemlock, tansy ragwort, sudan grass, locoweed, oleander, red maple trees, water hemlock, russian knapweed, yew....
They are not poisonous to dogs or cats but they are mildly toxic to horses and cattle.
The tubers of iris and the rest of the plant is mildly toxic. It can harm cats, dogs, horses, children.
No, Cowslip is toxic to horses (along with dogs and cats.) it can cause vomiting in small animals, and since horses cannot vomit it can be fatal if ingested.
Dogwood (trees and shrubs) do not show up on any of the typical lists as being a toxic plant for horses such as the ASPCA. As it does not show up as being toxic on several toxicity lists, dogwood should be fine planted around horses. If you have any further concerns, please check with your horses' veterinarian.
Yes azalea like most ornamental type plants are toxic to horses and should be removed from any place that they could come in contact with them. You can also contact your local agricultural extension agency for a list of toxic plant in your area.
True weeping willows are not toxic to horses, but other varieties may be.
The plant and seeds contain dhurrin (sugar+nonsugar) that breaks into HCN whick is toxic for ruminants and horses.
Caffeine is uncontrollably more toxic to animals including dos, horses, and parrots.
Himalayan balsam ( Impatiens glandulifera) is not listed as being toxic to horses, but when in doubt it is best to remove the plant be either relocating it to a safe place away from the horses or by removing it completely from the property.
Poison ivy is a toxic plant related to the cashew.
There is a tiny bit of cyanide in the seeds of horse. They are technically toxic to horses, but only if the horse eats enough of them to raise the level or cyanide in their body to toxic levels.
95% not