False ragweed
General poisoning notes:
False ragweed (Iva xanthifolia) is a native herb found across southern Canada. The plant can cause dermatitis in sensitive humans after they come in contact with the leaves. Lactating cows that ingest the leaves produce bitter-tasting milk (Muenscher 1975, Mitchell and Rook 1979).
Nomenclature:
Scientific Name: Iva xanthifolia Nutt.
Vernacular name(s): false ragweed
Scientific family name: Compositae
Geographic Information
Alberta, British Columbia, Manitoba, New Brunswick, Nova Scotia, Ontario, Prince, Edward Island, Quebec, Saskatchewan.
Toxic parts:
Leaves
Notes on Toxic plant chemicals:
Mitchell and Rook (1979) report that potentially allergenic sesquiterpene lactones have been isolated from some members of the genus Iva.
Toxic plant chemicals:
unknown chemical.
Animals/Human Poisoning:
Note: When an animal is listed without additional information, the literature (as of 1993) contained no detailed explanation.