Description: English: Hypericum canadense L. - lesser Canadian St. Johnswort. Date: 1995. Source:
https://plants.usda.gov/java/largeImage?imageID=hyca7_002_ahp.tif. Author: Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester. Provided by USDA NRCS Wetland Science Institute (WSI).