Prepared by Jennifer L. D’Appollonio, Assistant Scientist, University of Maine, Orono, ME 04469. Updated February 2018. Scientific name: Hypericum canadense L. Common name(s): Canada St. Johnswort, lesser Canadian St. Johnswort, lesser St. John’s-wort Links: USDA PLANTS Profile, NPIN Profile, Go Botany Images: (to see enlargements [PC]: click on image, then right click and choose “view