Hypericaceae

Hypericaceae is a plant family in the order Malpighiales, comprising six to nine genera and up to 700 species, and commonly known as the '''St. John's wort family'. Members are found throughout the world apart from extremely cold or dry habitats. Hypericum and Triadenum'' occur in temperate regions but other genera are mostly tropical.

Triadenum, known as '''marsh St. John's worts''', is a small genus of flowering plants in the family Hypericaceae. The genus is characterized by opposite, blunt-tipped leaves and pink flowers with 9 stamens. They are distributed in North America and eastern Asia.