| Specimen ID | 1321028 |
| Group | Plants |
| Genus | Najas |
| Species | minor |
| Common Name | brittle waternymph |
| State | IL |
| County | Cook |
| Locality | In Burnham, on the property of the Forest Preserve District of Cook County, at Powderhorn Lake, located on the far northeast side |
| Mapping Accuracy | Accurate |
| HUC8 Name | Little Calumet-Galien |
| HUC8 Number | 04040001 |
| HUC10 Name | Calumet River-Frontal Lake Michigan |
| HUC10 Number | 0404000106 |
| HUC12 Name | Calumet River-Frontal Lake Michigan |
| HUC12 Number | 040400010606 |
| Map | |
| Collection Day | 7 |
| Collection Month | 8 |
| Collection Year | 2001 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Reference 1 |
| Ref. Number: | 18446 |
| Author: | Morton Arboretum |
| Date: | 2017 |
| Title: | Morton Arboretum Herbarium (MOR) |
| Publisher: | SEINet Data Portal |
| Volume: | 2009 |
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| Comments | Assoc. spp.: Heteranthera dubia, Lythrum salicaria, Myriophyllum exalbescens, M. spicatum, Polygonum coccineum, P. amphibium stipulaceum, Potamogeton crispus, P. pectinatus, P. nodosus MOR 153420 |
| Record Type | Specimen |
| Disposal | Morton Arboretum |
| Museum Cat Number | MOR 153420 |
| Freshwater/Marine | Freshwater |
| Photo | |
