| Scientific Name | Tetradymia canescens DC. |
| Family | Asteraceae |
| Common Names | gray horsebrush, spineless horsebrush |
| Eastern Washington | Native |
| Conservation Status | |
| Notes |
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Along Hwy 17 opposite Lenore Lake at 47.47256N 119.51592W – Grant Co., WA – 5/31/2010 
Along Hwy 17 opposite Lenore Lake at 47.47256N 119.51592W – Grant Co., WA – 5/31/2010 
Along Hwy 17 opposite Lenore Lake at 47.47256N 119.51592W – Grant Co., WA – 5/31/2010 
Along Hwy 17 opposite Lenore Lake at 47.47256N 119.51592W – Grant Co., WA – 5/31/2010 
Along Hwy 17 opposite Lenore Lake at 47.47256N 119.51592W – Grant Co., WA – 5/31/2010 Ca. 6.4 mi S of Lind, WA along (north) the Lind-Hatton Rd – Adams Co. – 6/10/2011 
Ca. 6.4 mi S of Lind, WA along (north) the Lind-Hatton Rd – Adams Co. – 6/10/2011 
Ca. 6.4 mi S of Lind, WA along (north) the Lind-Hatton Rd – Adams Co. – 6/10/2011