Hemp dogbane
General poisoning notes:
1909). Hemp dogbane (Apocynum cannabinum) is a native plant found across Canada. Fuller and McClintock (1986) report that two horses died after ingesting alfalfa hay that contained large quantities of hemp dogbane. The tops of the plants (up to 1 m tall) were found in the hay.
Nomenclature:
Scientific Name: Apocynum cannabinum L.
Vernacular name(s): hemp dogbane
Scientific family name: Apocynaceae
Vernacular family name: dogbane
Apocynum cannabinum L.
Geographic Information
Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland, Northwest Territories, Nova Scotia, Ontario, Quebec, Saskatchewan
Toxic parts:
All parts
Notes on Toxic plant chemicals:
Hemp dogbane contains the chemical cymarin (a cardiac glycoside). Joubert (1989) lists this chemical under "Apocynum camrabinum," which is a typographical error and should read "Apocynum cannabinum."
Toxic plant chemicals:
apocynamarin
cymarin
cymarin
Cymarin
Chemical diagram(s) are courtesy of Ruth McDiarmid, Biochemistry Technician, Kamloops Range Station, Agriculture and Agri-Food Canada, Kamploops, British Columbia, Canada.
Animals/Human Poisoning:
Note: When an animal is listed without additional information, the literature (as of 1993) contained no detailed explanation.
