Alternate name: Hemp Dogbane

Family: Apocynaceae, Dogbane view all from this family

Description The strong, erect, purplish stem of Indian-hemp rises 3-4 ft., with branches ascending from the upper part. Long oval leaves often have a white coating or bloom as found on plums. Small cream-colored flowers are clustered at branch ends or on stalks from leaf axils. Tufted seeds form in spindle-shaped pods.

Warning This plant can be fatal to animals if eaten. Other plants in the genus have poisoned humans, and this species should not be ingested. Sensitivity to a toxin varies with a person’s age, weight, physical condition, and individual susceptibility. Children are most vulnerable because of their curiosity and small size. 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.

Flower May - August.

Flower May - August

Habitat Roadsides; thickets; fields; lakeshores; waterways; disturbed areas.

Range Throughout the U.S.; scattered in Canada.

Discussion A number of varieties occur across the continent. This species can become a serious weed as it is aggressive and difficult to control.

Comments A number of varieties occur across the continent. This species can become a serious weed as it is aggressive and difficult to control. Use only in large areas.

Exposure Preference Sun.

Native Distribution Throughout the U.S.; scattered in Canada

Site Preference Roadsides; thickets; fields; lakeshores; waterways; disturbed areas

Soil Preference Various soils.