Keywords: Persicaria sagittata NRCS-1.jpg en Persicaria sagittata L H Gross syn Polygonum sagittatum L - arrowleaf tearthumb 1989 http //plants usda gov/gallery/pubs/posag_001_php jpg 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 Persicaria sagittata Photographs by Robert H Mohlenbrock |