Not all of the showy plants you see along Iowa's roadways
are native grasses and wildflowers. Some are invasive, non-native plant species.
Invasive plants are species that have become established in an area
and, by out-competing more desirable plants, can degrade agricultural land and natural
areas. Invasive plants continually adapt and move to new habitats, particularly
disturbed roadsides. Controlling the spread of these species is an IRVM priority.
Several showy invasive plants, commonly found
in Iowa, are shown below. Click on the links for more information.
*Iowa Primary Noxious Weed
**Iowa Secondary Noxious Weed
complete list of Iowa's noxious weeds and learn more about the Iowa Weed
GENERAL INVASIVE PLANT INFORMATION LINKS:
Center for Invasive Plant Management
Plant Conservation Alliance
USDA - National Invasive Species Information Center
Iowa State Weed Science