| Scientific Name | Senecio hydrophilus Nutt. |
| Family | Asteraceae |
| Common Names | alkali marsh butterweed, water groundsel, alkali marsh ragwort |
| Eastern Washington | Native |
| Conservation Status | |
| Notes |
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Turnbull National Wildlife Refuge; in drainage just W of Headquarters; N 47.41626 W 117.53372; Spokane Co., 6/8/2016 
Wetland area E of Telford Rd ca. 1.6 mi S of Hwy 2; 7.2 air mi SE of Creston, WA; N 47.67939 W 118.41838; Lincoln Co., 5/25/2016 
Wetland area E of Telford Rd ca. 1.6 mi S of Hwy 2; 7.2 air mi SE of Creston, WA; N 47.67939 W 118.41838; Lincoln Co., 5/25/2016 
Wetland area E of Telford Rd ca. 1.6 mi S of Hwy 2; 7.2 air mi SE of Creston, WA; N 47.67939 W 118.41838; Lincoln Co., 5/25/2016 
Wetland area E of Telford Rd ca. 1.6 mi S of Hwy 2; 7.2 air mi SE of Creston, WA; N 47.67939 W 118.41838; Lincoln Co., 5/25/2016 
Wetland area E of Telford Rd ca. 1.6 mi S of Hwy 2; 7.2 air mi SE of Creston, WA; N 47.67939 W 118.41838; Lincoln Co., 5/25/2016 
Wetland area E of Telford Rd ca. 1.6 mi S of Hwy 2; 7.2 air mi SE of Creston, WA; N 47.67939 W 118.41838; Lincoln Co., 5/25/2016 
Wetland area E of Telford Rd ca. 1.6 mi S of Hwy 2; 7.2 air mi SE of Creston, WA; N 47.67939 W 118.41838; Lincoln Co., 5/25/2016 
Wetland area E of Telford Rd ca. 1.6 mi S of Hwy 2; 7.2 air mi SE of Creston, WA; N 47.67939 W 118.41838; Lincoln Co., 5/25/2016 
Wetland area E of Telford Rd ca. 1.6 mi S of Hwy 2; 7.2 air mi SE of Creston, WA; N 47.67939 W 118.41838; Lincoln Co., 5/25/2016 
Turnbull National Wildlife Refuge; in drainage just W of Headquarters; N 47.41626 W 117.53372; Spokane Co., 6/8/2016 Wetland area E of Telford Rd ca. 1.6 mi S of Hwy 2; 7.2 air mi SE of Creston, WA; N 47.67939 W 118.41838; Lincoln Co., 5/25/2016
