Keywords: Decodon verticillatus NRCS-1.jpg en Decodon verticillatus L Elliott - swamp loosestrife 1989 http //plants usda gov/java/largeImage imageID deve_002_ahp tif Robert H Mohlenbrock USDA-NRCS PLANTS Database / USDA SCS 1989 Midwest wetland flora Field office illustrated guide to plant species Midwest National Technical Center Lincoln Robert H Mohlenbrock 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 PD-USGov Uploaded with UploadWizard Decodon verticillatus Photographs by Robert H Mohlenbrock |