Just as their name would suggest, grassy weeds take on an appearance that is eerily similar to your turf. This is how they often go unnoticed, until they have taken over a substantial part of your lawn. With only slight differences between the look of your native turf, and many grass weed varieties, close inspection is needed for early identification. Some simple examples of grassy weeds include crabgrass, dallisgrass, goosegrass, and KR bluestem. Each of these weeds could be mistaken for turf, so diligence is required to rid your lawn of these invaders.