Sheyenne National Grasslands, Ransom County, ND.
Federally threatened species; rare across its range.
A tallgrass prairie species, occupying the edges of prairie wetlands, this species declined, along with many others, as almost every square yard of the tallgrass prairie was converted to cropland. All that remains are a few weary patches in cemeteries, railroad right-of-way, and small, embattled preserves.
Notice the Fibonacci sequence, a sum of the previous two numbers to infinity. This is how matter is packed into space with minimum wasted space.