Locality:
United States, Wisconsin, Vernon, Island 9; Mississippi River-Mile #688.8, Mississippi River-Navigation Pool 8; island on E side of main channel
43.68744253 -91.25922633
Verbatim Coordinates:
T14N R07W sec18
Habitat:
Age of dregde material-4yr. Normal pool elevation-631ft. specimen growing in alluvial forest on southern end of island.