The document discusses several native plants and animals found in Illinois, including the smooth blue aster, pin oak, late goldenrod, fowl manna grass, American bittern, long-eared owl, mussels, and blue-spotted salamander. Many of the species prefer wet or moist environments like marshes and swamplands but can also be found near water sources and forests. The long-eared owl and American bittern are migratory birds that reside in Illinois during part of the year, and the blue-spotted salamander faces threats from expanding cities.