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Rough Bluegrass (P) — Poa trivialis — Family: Poaceae — Grass

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© Copyright 2004-2017, Ronald Calhoun.
© Copyright 2004-2017, Ronald Calhoun.
© Copyright 2004-2017, Ronald Calhoun.
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AKA

Rough bluegrass is often used to overseed dormant warm-season turfgrasses. Overseeding typically occurs in the fall to provide a playing surface throughout the winter months. As such, turfgrass managers typically use herbicides to remove the rough bluegrass in the spring just as the warm-season grasses are coming out of dormancy. Rough bluegrass has an alter ego as a noxious weed contaminant of cool-season grass seed. It usually occurs in irrigated turf and is extremely difficult to eradicate once established. It has a distinctive apple green color and stringy texture.