Viola nephrophylla

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Description: English: Viola nephrophylla (Northern bog violet). Date: 1992. Source: Joe F. Duft @ USDA-NRCS PLANTS Database / USDA NRCS. 1992. Western wetland flora: Field office guide to plant species. West Region, Sacramento. Author: Joe F. Duft. Permission(Reusing this file): Public domainPublic domainfalsefalse. : This image is a work of the Natural Resources Conservation Service, part of the United States Department of Agriculture, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States. : .