Great St. John's wort - Hypericum pyramidatum Aiton
Above: Great St. John's wort on bank of Marion Dunn Pond in Madison, Wisconsin. (7/07/19).
Great St. John's wort - Hypericum pyramidatum (Hypericum ascyron)
Great St. John's wort is a Wisconsin native and grows from 3-5' tall.
The golden yellow, 5-petals flowers are from 2 to 2 1/2 inches across. They have numerous long yellow stamens with orange tips and , in the center, is a light green, pyramid shaped pistil with 5 persistent styles with red tips.
Other names: Giant Saint John's wort.
Above: Great St. John's wort on bank of Marion Dunn Pond in Madison, Wisconsin. (7/07/19).
For more information on the Great St. John's wort, visit Wikipedia.
Or, visit the UW-Madison Wisconsin State Herbarium website page about Great St. John's wort - Hypericum pyramidatum.
Great St. John's wort
Hypericum pyramidatum
Above: Great St. John's wort on bank of Marion Dunn Pond in Madison, Wisconsin. (7/7/19).
Above: Great St. John's wort on bank of Marion Dunn Pond in Madison, Wisconsin. (7/8/19).
