Heron Pond, Cache River State Natural Area, Johnson County, Illinois, US Click on these geocoordinates to load a map showing the location: 37.35952°, -88.92154°
Coordinate uncertainty about: 200 m.
Location determined from Google maps.
Occurrences were recorded for this particular organism on the following dates: 2002-09-21
Gleason, Henry A. and Arthur Cronquist, 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, NY, US.