| Scientific Name | Ceratophyllum demersum L. |
| Family | Ceratophyllaceae |
| Common Names | coon’s-tail |
| Eastern Washington | Native |
| Conservation Status | |
| Notes |
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W shore of Coffin Lake W of Colville, WA on the rd to Tiger; N 48.575995 W 117.555233 – Stevens Co. – 10/3/2011 
W shore of Coffin Lake W of Colville, WA on the rd to Tiger; N 48.575995 W 117.555233 – Stevens Co. – 10/3/2011 
W shore of Coffin Lake W of Colville, WA on the rd to Tiger; N 48.575995 W 117.555233 – Stevens Co. – 10/3/2011 
3.06 air mi SW of Mattawa, WA just S of the Buckshot Recreation area parking lot; N 46.71055 W 119.95339; Grant Co., 10/13/2016 
3.06 air mi SW of Mattawa, WA just S of the Buckshot Recreation area parking lot; N 46.71055 W 119.95339; Grant Co., 10/13/2016