Solomon's-seal berries, mature

This photo shows the dark blue mature, late summer stage of the seed pods that dangle from underneath Solomon's-seal, Polygonatum biflorum, a North American woodlands native perennial.
 
For more about Solomon's-seal and native plants for the Midwest, especially those that do well in shade/moist areas, see the "book" on this website, Gardening with Native Plants in Shady Evanston.