| Scientific Name | Equisetum hyemale L. ssp. affine (Engelm.) Calder & Roy L. Taylor |
| Family | Equisetaceae |
| Common Names | common scouring rush, Dutch rush, prairie scouring rush |
| Eastern Washington | Native |
| Conservation Status | |
| Notes |
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13 mi W of Kettle Falls along Sherman Creek – Ferry Co., WA – 5/17/2010 
13 mi W of Kettle Falls along Sherman Creek – Ferry Co., WA – 5/17/2010 
13 mi W of Kettle Falls along Sherman Creek – Ferry Co., WA – 5/17/2010 
13 mi W of Kettle Falls along Sherman Creek – Ferry Co., WA – 5/17/2010 
13 mi W of Kettle Falls along Sherman Creek – Ferry Co., WA – 5/17/2010 
13 mi W of Kettle Falls along Sherman Creek – Ferry Co., WA – 5/17/2010 
13 mi W of Kettle Falls, WA S of Hwy 20 along Sherman Creek; N 48.57762 W 118.29227; Ferry Co.; 5/29/2018 
13 mi W of Kettle Falls, WA S of Hwy 20 along Sherman Creek; N 48.57762 W 118.29227; Ferry Co.; 5/29/2018
