The Virginia marsh St. John’s wort is no longer placed in the Hypericum genus with the others; its pink-blooming flowers each have three orange glands and nine stamens grouped in threes, while the Hypericum lot blooms yellow, lacks those additional glands, and has a differing number of stamens. Triadenum virginiana does, though, have the trademark leaf pattern of the St. John’s worts: arranged opposite one another, each pair at a 90-degree angle from the last. A little population of these plants is emerging along the shore of a small pond near Beech Forest in Provincetown, joining a community of cranberry, carex, and amphibians already at home there.
