| Scientific Name | Lactuca serriola L. |
| Family | Asteraceae |
| Common Names | prickly lettuce |
| Eastern Washington | Introduced |
| Conservation Status | |
| Notes |
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Along Ritchey Rd ca 0.4 mi from Hwy 904 W of Cheney, WA – Spokane Co. – 7/10/2009 
Along Ritchey Rd ca 0.4 mi from Hwy 904 W of Cheney, WA – Spokane Co – 7/10/2009 
Along Ritchey Rd ca 0.4 mi from Hwy 904 W of Cheney, WA – Spokane Co. – 7/10/2009 
Along Ritchey Rd ca 0.4 mi from Hwy 904 W of Cheney, WA – Spokane Co. – 7/10/2009 
Along Ritchey Rd ca 0.4 mi from Hwy 904 W of Cheney, WA – Spokane Co. – 7/10/2009