"Toxicity can vary in a plant according to season, the plant???s different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil.Habitat Canyons & valleys, Watersides (fresh).Range Mid-Atlantic, Great Lakes, Plains, New England, Texas, Southeast, Eastern Canada.Comments Kentucky coffee tree is resistant t" . . . .