Foxtails—a type of seed cluster found in a small group of weed plants—are commonly found in Northern California, including foxtail grasses, barley and millets. While these weeds may seem harmless, animal owners should be vigilant to keep their pets away from plant awns. Covered with microscopic projections, foxtails can pose severe health risks to animals, as they migrate into tissue causing abscesses and widespread infections. The physical make-up of the foxtail stops it from reversing direction and exiting the body. The most common access points foxtails utilize to enter the body are through the nose, mouth and ears, but they can also penetrate the skin causing wounds and subcutaneous abscesses.