Knotroot foxtail

COLUMBIA, Mo. – University of Missouri Extension weed scientist Kevin Bradley lists two weeds to watch in 2024. Knotroot foxtail, like yellow foxtail, has a short, hair-like ligule and a typical foxtail-like seedhead. Unlike yellow foxtail, however, this species has short, knotty rhizomes. The invasive perennial is also known as bristle grass. Knotroot foxtail is…