I still have quite a few from 2020 to share. These Melanthium virginicum were photographed a year ago this month at Helton Prairie Natural Area in Harrison County, MO.
With a CC value of 9, this plant requires specific habitat of wet meadows, moist prairies, fens and acid seeps. With the loss of these habitat types, this plant has become rare in Missouri and Illinois. This plant is also toxic to mammalian herbivores. So, if you have the appropriate spot, this would be a great native perennial to plant in high deer pressure areas.
-OZB
A Thousand Acres of Silphiums 