Canada St. Johnswort

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 image”)


– annual

-leaves are

  • simple
  • opposite
  • linear
  • entire
  • -1-3 veins

-4″-24″ tall forb

– may be confused with H. boreale in wetlands, H. majus or H. mutilum; see left sidebar of Go Botany webpage



-shores of rivers



Natural History:

-Hypericum derives from ancient Greek hyper, meaning ‘above’ and ‘picture’

  •  tradition of placing flowers above an image to ward off evil spirits in the house at a festival that later became the Feast of St. John



Go Botany. “Hypericum Canadense L.” Hypericum Canadense (Lesser St. John’s-Wort): Go Botany, 2021,

Wisconsin State Herbarium. “Hypericum Canadense.” Online Virtual Flora of Wisconsin , Department of Botany ,