Question

Plants That are poisonous to Horses

Answer 1

Scientific Name. N Common Name(s) Species Most Often Affected
Acer rubrum Red maple, Swamp maple, Soft maple horses
Acer saccharum Sugar maple, Rock maple, Hard maple horses. Acer saccharinum Silver maple, Soft maple, White maple horses

Answer 2

Not all plants are but some, for example, Solanum, solidago, and sorghum.