| Specimen ID | 1692528 |
| Group | Plants |
| Genus | Persicaria |
| Species | hydropiper |
| Common Name | marshpepper knotweed |
| State | IL |
| County | Grundy |
| Locality | jct Rte IL 35 and Mazon Creek |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Illinois |
| HUC8 Number | 07120005 |
| HUC10 Name | Mazon River |
| HUC10 Number | 0712000505 |
| HUC12 Name | Claypool Ditch |
| HUC12 Number | 071200050502 |
| Map | |
| Collection Day | 1 |
| Collection Month | 10 |
| Collection Year | 1960 |
| 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: | 28842 |
| Author: | University of Wisconsin - Madison |
| Date: | 2017 |
| Title: | Wisconsin State Herbarium (WIS) |
| Publisher: | SEINet Data Portal |
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| Record Type | Specimen |
| Museum Cat Number | v0308240WIS |
| Verifier | Great Lakes Invasives Network |
| Freshwater/Marine | Freshwater |
