Mark Renz, UW-Extension Weed Scientist, has recently developed a web-based weed identification tool for Wisconsin. The database contains 280 of the most common weeds/invasive plants found in agricultural, urban, and natural settings in Wisconsin. The database can be accessed at: http://weedid.wisc.edu
Once you arrive at this website click on the Weed ID Tool on the left column. The database is organized to ask questions about the unknown plant and based on the user’s input, the website will produce a list of plants (scientific and common names) along with thumbnail images that match the information entered.