Which weed is typically not considered a grass but is often included in lists of turf pests?

Nutsedge is typically classified as a sedge, which is a different type of plant from grasses. While it shares some similar characteristics with grasses, such as growing in turf environments and being problematic for turf management, it does not fall under the grass category taxonomically. Nutsedge is known for its rapid growth, vigorous spreading through underground rhizomes, and its ability to thrive in wet conditions, making it a problematic weed for turf as it competes for resources and can outgrow and overpower desirable turf grasses. This unique classification and its aggressive nature are why it is often included in lists of turf pests despite not being a grass.