Solomon's-Seal seedlets

Solomon's-seal, Polygonatum biflorum, a member of the lily family, is a North American woodlands native distinguished from some lookalikes (such as False solomon's-seal) by its seed pods that dangle from underneath the top arch of the stem in late spring. These seed pods start off spherical, as seen here, then grow within a week or two into a more delicate, trumpet-like shape.
 
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.

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