Shrubby St. John´s-wort

Hypericum prolificum, known as shrubby St. John´s wort, is a deciduous shrub in the genus Hypericum. It was named for its "prolific" number of stamens.

 Hypericum prolificum is a shrub growing up to 2 m tall with elliptic to oblanceolate leaves up to 70 mm long and 15 mm broad. The flowerheads have between 1 and 9 flowers, each across with 5 golden yellow petals and numerous stamens. The ovary is usually three-parted, though may have up to five parts in some individuals.

Distribution and habitat: Hypericum prolificum is native to the central and eastern United States and Ontario. Habitats include riparian areas, slopes, thickets, swamp edges, and oak woodlands.