Grass-like weeds at first glance look like a grass, but are relatively easy to to distinguish from grasses. Upon close inspection, the stems are triangular in shape.

Common grass-like weeds include:

Grass-Like Weeds	Description	Photo ID
Yellow nutsedge	ellow Nutsedge (Cyperus esculentus L.) is a common weed found in many home lawns. The color, growth habit, and rapid growth rate make yellow nutsedge a prominent distraction in the aesthetics of high quality lawns.
Wild garlic/onion	Wild onion (A. validum or A. canadense) is a bulbous herb of the Amaryllis family and is a close relative of cultivated onion (Allium cepa L.). It has a distinct onion odor. It has slender grass-like leaves and reaches about 2 feet in height when flowers appear in late summer. Leaves are narrow, long, and with parallel edges arising from the small underground bulb.
Star-of-Bethlehem	A bulbous perennial with leaves that resemble wild garlic and have small, white, star-shaped flowers. Star-of-Bethlehem is similar to Wild Garlic (Allium vineale), however Star-of-Bethlehem lacks the characteristic garlic smell and also has distinctive white midveins along the leaves unlike wild garlic.

American Lawns can help you if you live in one of these states: Alabama, Arkansas, Connecticut,Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas,Vermont, Virginia, Washington, West Virginia, or Wisconsin.