| Specimen ID | 1693105 |
| Group | Plants |
| Genus | Persicaria |
| Species | hydropiper |
| Common Name | marshpepper knotweed |
| State | IL |
| County | Jo Daviess |
| Locality | Savanna Army Depot. Mississippi River Section of the Illinois River and Mississippi River Sand Area Division. Hanover 7.5 minute quadrangle. UTM 15, 718348mE, 4681356mN. Hanover |
| Mapping Accuracy | Accurate |
| HUC8 Name | Apple-Plum |
| HUC8 Number | 07060005 |
| HUC10 Name | Pleasant Creek-Mississippi River |
| HUC10 Number | 0706000504 |
| HUC12 Name | Crooked Slough-Mississippi River |
| HUC12 Number | 070600050406 |
| Map | |
| Collection Day | 22 |
| Collection Month | 8 |
| Collection Year | 1996 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | unknown |
| Reference 1 |
| Ref. Number: | 27378 |
| Author: | Cranberg, C., and R. Keller |
| Date: | 2020 |
| Title: | Illinois Database of Aquatic Non-native Species |
| Publisher: | School of Environmental Sustainability, Loyola University Chicago |
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| Reference 2 |
| Ref. Number: | 28887 |
| Author: | Minnaert-Grote, J. (manager). |
| Date: | 2015 |
| Title: | Illinois Natural History Survey Herbarium (ILLS) |
| Publisher: | Prairie Research Institute, Illinois Natural History Survey |
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| Record Type | Specimen |
| Museum Cat Number | ILLS00078744 |
| Verifier | Great Lakes Invasives Network |
| Freshwater/Marine | Freshwater |
