Green puncturevine with yellow flowers

These spiny invaders are rapidly spreading in the Okanagan and Similkameen Valleys, negatively impacting agricultural land. Both species prefer sandy or well-drained soils and readily invade disturbed ground.

Stiff spines on the fruit readily attach to footwear, clothing, animals, tires, machinery and supplies.

Read the OASISS Puncturevine and Longspine Sandbur brochure.

Okanagan Invasive Species Online