LANSING, Mich. An invasive aquatic plant first detected in southeastern Michigan in 1996 has been found in four inland lakes in Washtenaw and Jackson counties. The presence of European frogbit has been confirmed within the Waterloo Recreation Area, according to Michigans Department of Environment, Great Lakes, and Energy. European frogbit resembles a miniature water lily with leaves about the size of a quarter. Since its initial detection in southeastern Michigan, the plant has spread along the coastal areas of lakes Erie and Huron up to the eastern Upper Peninsula. It also has been found in two lakes near Grand Rapids, several small bodies of water in Oakland County and in the Lower Grand River in Ottawa County and Pentwater Lake in Oceana County.