Paspalum dilatatum is native to Argentina and Brazil but has been introduced to many other areas of the world. Dallisgrass has naturalized here in Florida as well as other areas of the United States; it is considered a noxious weed and considered invasive in some areas. Dallisgrass is a coarse, rough bladed grass that forms dense, thick clumps and spreads by underground rhizomes. This grass prefers marshes or damp, disturbed areas and is frequently found growing in golf courses, lawns and pastures.

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