Here are some plants that I have seen during my walks in the woods. Some of the plants are native to Wisconsin and some are invasive species.
Queen Anne’s lace
Common milkweek seeds. These are really soft and fun to see fly in the wind. If you open the pod slowly you can see the seeds arranged in a spiral.
These are easy to find in the fall. Just go for a walk in the woods and you will end up with some stuck to you. I use these in lessons to show the students where the idea of Velcro came from.
Puffball mushroom. These are pretty cool. They can get to be the size of a soccer ball.