Larry Williams UF/IFAS Extension Agent Okaloosa County lwilliams@co.okaloosa.fl.us   Virginia buttonweed (Diodia virginiana) is a difficult-to-control lawn weed.   Factors that result in this weed being difficult to control include the following. It is a perennial plant native to the Southeastern United States. Spreads by seeds produced above or below ground, broken stems or roots. …

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