Great St. John's Wort is the showiest Hypericum species in the midwest. The large bright yellow, 5 parted flowers are over 2" in width.
A native of partly shaded, moist sites in woodlands, woodland edges as well as along riparian areas.
The central ovary is quite dominant in the center of the flower and as the petals fall it is equally showy as it dries, browns and matures. The seed capsule gets quite hard and inside are 5 chambers containing many small seeds.
Great St. John's Wort is native to northeastern North America. See map below for range.
|Kartesz, J.T., The Biota of North America Program (BONAP).
2011. North American Plant Atlas. Chapel Hill, N.C.