Persistent Blackberry

Panhandle

Bay, Escambia, Franklin, Jackson, Leon, Liberty, Okaloosa, Wakulla, Walton

North

Alachua, Clay, Columbia, Duval, Flagler, Levy, Marion, Putnam, St. Johns, Taylor

Central

Brevard, Hernando, Highlands, Hillsborough, Lake, Orange, Osceola, Pasco, Pinellas, Polk, Seminole, Sumter, Volusia

32 of 67 counties, from research-grade iNaturalist observations. They show where people have photographed it, not every place it grows — absence here isn't proof it's absent.