I am sorry for this delayed reply to your gardening question. The spring rush has brought a deluge of questions and we are working hard to catch up!
I can't identify it based on that description. I suggest you contact your County Extension Office and see about bringing in a sample of the grassy weed or even photos of the plants to see if they can identify them for you. Depending on the type of grass you may be able to find a spray that prevents or kills it without damaging your turfgrass.
Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!
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