How to identify lawn weeds. This lawn weed identification guide includes images, common and scientific names and descriptions to help you with weed id. The guide is divided into three weed groups – broadleaf lawn weeds, grass weeds, and grass-like weeds – and then into sub-groups based on the plant’s life cycle.

Learning to identify weeds is a skill that takes some practice, but there’s lots of help available to help you develop an eye for weed ID. Cornell has a Weed ID website that walks you through the traits needed to identify our agronomic and turf weeds. The University of Iowa has a good basic introduction to weed science and ID presentation here.