Apocynum androsaemifolium (Fly-trap dogbane, Spreading dogbane) is a flowering plant in the Gentianales order. The plant is common in North America, and is widespread across most of the United States and Canada, and in Alaska, California, and Northeast Mexico. Apocynum androsaemifolium has branching stems, hairs on the underside of the leaves, and no hair on the stems. Milky sap appears on broken stems. Leaf margin is entire and leaf venation is alternate. Its leaves appear as pointed ovals, while its flowers appear terminally on a stalk. The plant is poisonous, due to the cardiac glycosides it contains. Subspecies and Varieties: Subspecies and varieties include: Apocynum androsaemifolium subsp. androsaemifolium - E Canada, W United StatesApocynum androsaemifolium var. griseum (Greene) Bég. & Belosersky - Ontario, British Columbia, Washington State, Oregon, Idaho, Indiana, MichiganApocynum androsaemifolium var. incanum A. DC. - widespread in Canada, United States, NE MexicoApocynum androsaemifolium var. intermedium Woodson - ColoradoApocynum androsaemifolium subsp. pumilum (A. Gray) B. Boivin - British Columbia, Washington State, Oregon, Idaho, California, Utah, Montana, Wyoming, NevadaApocynum androsaemifolium var. tomentellum (Greene) B. Boivin - British Columbia, Washington State, Oregon, Idaho, California, NevadaApocynum androsaemifolium var. woodsonii B. Boivin - Alberta, British Columbia, Washington State, Wyoming, Nevada, Idaho