Which of the following is an example of a grassy weed?

Crabgrass is classified as a grassy weed because it belongs to the Poaceae family, which is the grass family. Grassy weeds are characterized by their smooth, narrow leaves and growth habit that resembles typical grass, making them particularly competitive in lawns and turf environments. These types of weeds often thrive in conditions where desirable grasses struggle, and they can establish quickly due to their prolific seed production and adaptability to various growing conditions.

In contrast, options like dandelion and wild onion are broadleaf weeds, which have distinct leaf shapes and growth patterns that differ significantly from grasses. Nutsedge, while it can resemble grass at a glance, is actually a sedge and is not classified within the grasses. Understanding these classifications is crucial for effective pest management in cool-season turfgrass, as it helps in selecting the appropriate control measures for different types of weeds.