The Indiana Invasive Species Council (IISC) was established by the state legislature to enhance the ability of government agencies to detect, prevent, monitor, and manage new and long established invasions, as well as increase public awareness about invasive species. It arose out of an Invasive Species Task Force, which rigorously evaluated numerous exotic species for their degree of invasiveness.
Read the 2008 Invasive Species Task Force Report
The Indiana Invasive Species Council appointed the Invasive Plant Advisory Committee in 2009 to address invasive plant issues in Indiana. Their first act was to develop a science-based, transparent list of invasive plants for Indiana through an assessment process that ranked species as high, medium, or low invasive risk, and listed others that bear watching to see if they become invasive.
That list was adopted by the Indiana Invasive Species Council as the official list of invasive plants for Indiana, and was used as the basis for regulating highly invasive plants in Indiana.
The Indiana Invasive Plant List reproduced here includes links to specific plant evaluations.