Prepared by Jennifer L. D’Appollonio, Assistant Scientist, University of Maine, Orono, ME 04469. Updated April 2019. Scientific name: Lythrum salicaria L. Common name(s): purple loosestrife Links: USDA PLANTS Profile, Go Botany Images: (to see enlargements [PC]: click on image, then right click and choose “view image”) Description: -perennial -considered an invasive