-
- © ill Summers. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln. Courtesy of USDA NRCS Wetland Science Institute.
- Copyright licence: Marked as being in the public domain
- Provenance: http://media.eol.org/content/2015/03/20/16/56609_orig.jpg