Keywords: Plantago cordata 1.jpg en Plantago cordata 2012-03-29 http //plants usda gov/java/profile symbol PLCO2 Steve Olson 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 Plantago cordata |