The acorn fell from a nearby oak. If a squirrel does not find it first, it may germinate. Bur oaks are one of the few trees that can survive fires that sometimes sweep across tallgrass prairies. Purple prairie clover - Look for a seed that looks like a brown bell pepper wearing a crown. This seed may have been carried here by an ant.
Prairie clovers hold onto their seeds all winter long.
In the spring, the seeds drop to the ground, where insects and other animals find them.