| Scientific Name | Marah oregana (Torr. & A. Gray) Howell |
| Family | Cucurbitaceae |
| Common Names | coastal manroot |
| Eastern Washington | Native |
| Synonyms | None |
| Conservation Status | |
| Notes |
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Ca. 4 air mi. ENE of Waitsburg in Lewis and Clark State Pk; N 46.28791 W 118.07174; Columbia Co., WA; 7/22/2009 
Ca. 4 air mi. ENE of Waitsburg in Lewis and Clark State Pk; N 46.28791 W 118.07174; Columbia Co., WA; 7/22/2009 
Ca. 4 air mi. ENE of Waitsburg in Lewis and Clark State Pk; N 46.28791 W 118.07174; Columbia Co., WA; 7/22/2009
