[The St. John's-wort Family East of the Cascade Mountains of Oregon and Washington]

Common St. Johnswort, Common St. John's-wort, Klamathweed, Klamath Weed

Hypericum perforatum

Common St. Johnswort, Common St. John's-wort, Klamathweed, Klamath Weed: Hypericum perforatum

Common St. John's-wort as seen along the valley trail about three-quarters of a mile northwest of the Painted Rocks trailhead, Little Spokane River Natural Area........July 5, 2011.

Close-up of the flowers of Common St. Johnswort, Common St. John's-wort, Klamathweed, Klamath Weed: Hypericum perforatum

The photo above shows a close-up of the flowers of common St. John's-wort at the Mt. Adams Viewpoint on Rd #23 on August 6, 2005. Note the numerous black spots (blackish glands) around the edges of the petals.

Close-up sideview of the flower of Common St. Johnswort, Common St. John's-wort, Klamathweed, Klamath Weed: Hypericum perforatum - Stem leaf of Common St. Johnswort, Common St. John's-wort, Klamathweed, Klamath Weed: Hypericum perforatum

Close-up photos of a sideview of the flower and a stem leaf of common St. John's-wort at the Mt. Adams Viewpoint on Rd #23 on August 6, 2005. It is not easy to see here, but with a hand lens, one can notice numerous minute, circular areas in the leaf blade which let light through, hence the species name perforatum.
Paul Slichter