English: Marsh St. Johns-wort; Virginia marsh St. Johnswort.
Region: central and eastern United States and eastern Canada.
Habitat: bogs, wet meadows, fens, swamps, along lakeshores.
BotanySmall herb; 70 cm tall.
Leaves: sessile, opposite, sometimes clasping; blunt-tipped.
Flowers grow up to 15 mm (0.6 in) in diameter, petals 5, pink; blooming in the summer to early fall; 9 stamens.