| Specimen ID | 259054 |
| Group | Plants |
| Genus | Iris |
| Species | pseudacorus |
| Common Name | yellow iris |
| State | WA |
| County | Kittitas |
| Locality | Mattoon Lake - S of Ellensburg and just N of Hwy 90 |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Yakima |
| HUC8 Number | 17030001 |
| HUC10 Name | Wilson Creek-Cherry Creek |
| HUC10 Number | 1703000104 |
| HUC12 Name | Lower Naneum Creek-Wilson Creek |
| HUC12 Number | 170300010408 |
| Map | |
| Collection Day | 30 |
| Collection Month | 8 |
| Collection Year | 1994 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 16041 |
| Author: | Parsons, J. |
| Date: | 2007 |
| Title: | Washington Aquatic Plant Monitoring Database |
| Publisher: | Washington Department of Ecology |
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| Comments | plants in nearly monospecific patches, dominant; along shore |
| Record Type | Literature |
| Earliest Record | locale |
| Freshwater/Marine | Freshwater |
