| Specimen ID | 229981 |
| Group | Plants |
| Genus | Murdannia |
| Species | keisak |
| Common Name | marsh dewflower |
| State | OR |
| County | Clatsop |
| Locality | Columbia River Estuary. |
| Mapping Accuracy | Approximate |
| HUC8 Name | Lower Columbia |
| HUC8 Number | 17080006 |
| Map | |
| Collection Year | 1982 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 10610 |
| Author: | Thomas, D.W. |
| Date: | 1984 |
| Title: | The Aquatic Vascular Flora of the Columbia River Estuary. |
| Journal: | Wasmann Journal of Biology |
| Volume: | 42 |
| Issue: | 1-2 |
| Pages: | 94-106 |
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| Reference 2 |
| Ref. Number: | 10494 |
| Author: | Dunn, C.P., and R.R. Sharitz |
| Date: | 1990 |
| Title: | The history of Murdannia keisak (Commelinaceae) in the Southeastern United States. |
| Journal: | Castanea |
| Volume: | 55 |
| Issue: | 2 |
| Pages: | 122-129 |
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| Reference 3 |
| Ref. Number: | 16728 |
| Author: | Sytsma, M.D., J.R. Cordell, J.W. Chapman, and R.C. Draheim. |
| Date: | 2004 |
| Title: | Lower Columbia River Aquatic Nonindigenous Species Survey 2001-2004. Final Technical Report: Appendices. |
| Publisher: | United States Coast Guard and the United States Fish and Wildlife Service. |
| Volume: | 2004 |
| Issue: | October |
| Pages: | 164 pp |
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| Comments | Noted in LCRANS as found in 1984 on the Oregon side of Lois Island, but was not found duing LCRANS surveys |
| Record Type | Literature |
| Earliest Record | state |
| Freshwater/Marine | Freshwater-Brackish |
