To help with your weed ID efforts, you will find over 100 weeds lists,
most of them with images, organized by state or province, at the World
of Weeds www.ergonica.com. For Illinois, 8 weeds lists are included.
With so many online weeds databases, many of which having been
published in only the last few years, it's now easier to identify any
weed that pops up in your garden. Some weeds are also highly invasive
and noxious, and others are also poisonous. The more we know about our
weeds, the better.
Talk about weeds: World of Weeds www.ergonica.com