Weed Wednesday – Black Henbane

Weed Wednesday – Black Henbane

This weeks Weed Wednesday feature is Black Henbane!

Black Henbane is a POISONOUS noxious weed showing up across Alberta, especially in disturbed areas like roadsides, yards, and pastures. Early detection is key!

How to identify it:

  • Sticky, hairy leaves with a strong, unpleasant odor
  • Pale yellow flowers with dark purple veins and centers
  • Thick stems and a bushy growth habit
  • Seed pods that look like small urns with a lid on top

Why it’s considered noxious:

  • Highly toxic to humans, livestock, and pets
  • Can contaminate forage and reduce pasture quality
  • Spreads easily and establishes quickly in disturbed soil
  • Difficult to control once established

If you think you’ve found Black Henbane or need help identifying it, take a clear photo and note the location. Contact your local Agricultural Fieldman for proper identification and management advice.

For more information on Black Henbane, visit: Black Henbane – Alberta Invasive Species Council