Tuesday, April 24, 2012

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
Vernacular family name: composite.

Iva xanthifolia Nutt.
Iva xanthifolia Nutt.

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.

Humans

General symptoms of poisoning:

erythema.

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