Illinois
| Title | Illinois |
| View | 346 |
| Series | VIII: Botany Department |
| Description | Dense growth of Ambrosia trifida on a recent island in the Illinois River, Starved Rock State Park, Illinois. |
| Subject Terms | Herbaceous plants | Annuals (Plants) | Islands (Landforms) | Rivers | Illinois River (Illinois) | Starved Rock State Park (Illinois) |
| Scientific Plant Name(s) | Ambrosia trifida |
| Common Plant Name(s) | Great Ragweed |
| Photograph Date | Undated |
| Physical Format | Photographic prints; 9.5 x 11.6 cm |
| Location | LaSalle County, Illinois |
| AEP Number | aep-ilp205 |
| Collection | University of Chicago Department of Botany Records |
| Repository | University of Chicago Library, Special Collections Research Center |
| Image Identifier | apf8-01845 |
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