Range and Habitat in Illinois
The Annual Sunflower occurs throughout Illinois; it is especially common in the central and northern areas of the state (see Distribution Map). Habitats include disturbed areas of mesic to dry prairies, meadows in wooded areas, cultivated and abandoned fields, pastures, areas along railroads and roads, and urban waste areas. Annual Sunflower may occur sporadically as individual plants, or in small to large colonies that persist year after year. This rather weedy wildflower can be controlled by summer wildfires or periodic mowing.
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