| Specimen ID | 243633 |
| Group | Plants |
| Genus | Egeria |
| Species | densa |
| Common Name | Brazilian waterweed |
| State | OR |
| County | Benton |
| Locality | 12 miles south of Corvallis off Highway 99 W, on South Benton Grange Rd. |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Willamette |
| HUC8 Number | 17090003 |
| HUC10 Name | Marys River |
| HUC10 Number | 1709000302 |
| HUC12 Name | Lower Muddy Creek |
| HUC12 Number | 170900030210 |
| Map | |
| Collection Day | 23 |
| Collection Month | 10 |
| Collection Year | 1963 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | collected |
| Reference 1 |
| Ref. Number: | 17243 |
| Author: | Oregon State University. |
| Date: | 2016 |
| Title: | Oregon Flora Project |
| Publisher: | Oregon State University |
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| Record Type | Literature |
| Earliest Record | drainage |
| Museum Cat Number | OSC116074 |
| Freshwater/Marine | Freshwater |
