The Horseweed is poisonous for both cats and dogs.
Typical symptoms include diarrhea, nausea, upset stomach and vomiting.
Horseweed is a perennial herb that could grow up to 40 inches tall commonly found in the United States, Canada, Alberta, British Columbia and New Mexico. They usually grow in prairies and in open coniferous forests. They belong to the daisy family and are characterized by their inflorescence in which generally contains 2-20 flower heads per stem
The scientific name for this plant is Erigeron speciosus. Additional name for this plant include Aspen Fleabane, Fleabane, Garden Fleabane, Seaside Daisy, Showy Daisy and Showy Fleabane.
Image: Istock.com / Werner Meidinger