Added
- Chicago & the Corn Belt Prairie is on the map: 63 native plants for Chicago, Rockford, Champaign and Springfield, from bur oak to compass plant, rattlesnake master and the wild leek whose Myaamia name the French wrote down as "Chicago".
- Wildlife: meet the hackberry emperor, a butterfly that lands on people for the salt in their sweat, and the rare rattlesnake-master borer moth.
- Invasives: Chicago's most wanted — common buckthorn, Amur honeysuckle, garlic mustard, cut-leaved teasel and purple loosestrife — with how to know each and how to get rid of it for good.