Hi Paul,

Sometimes it's hard to ID a plant from just one image. However, these are my best guesses.

Photo 1 is of a Chasmanthium species, most likely Chasmanthium latifolium. It is also known as northern wood-oats, inland sea oats, northern sea oats, and frequently sold as a native plant. However, in Michigan, it is only native to Berrien County. It seeds readily and can easily take over a garden. 

Photo 2 is of a Solanaceous species, probably Solanum ptychanthum. Solanum ptychanthum is commonly called black nightshade, but there a few other species that are called black nightshade as well. Solanum ptychanthum is native to Michigan. You can read more about it here (click on the photo to see more photos) and here. Nightshades can be toxic if eaten in significant amounts, so please do not ingest this plant or allow any pets or livestock to eat it. 

Lindsey K. Kerr, MS, MHP (she, her, hers)
Consumer Horticulture Educator
Michigan State University Extension