Scientists and volunteers are finding trees, flowers and other plants afflicted by herbicide drift everywhere they look in Illinois, including in nature preserves, state parks, orchards ...

SPRINGFIELD (Illinois News Network ... The violet is the official state flower. And the white oak is the state tree. There's even a state fossil (Tully monster) and state soil (Drummer silty ...

Illinois does have a number of state symbols – including a state bird (the northern red cardinal), a state flower (the violet), a state tree (the white oak), and a state fish (the bluegill).

The nearly 90-foot-tall green ash tree growing in central Illinois is the largest of its kind in the state, and that makes it worth protecting, a forestry expert says. An arborist on Monday ...

That annual midsummer family affair known as the Illinois State ... will be 100,000 flowers of 121 varieties that are being planted to beautify the grounds in beds around trees and in front ...