Marah oreganus Taxonomy: Cucurbitaceae, Marah Category: Dicot Scientific NameMarah oreganus (Torr. & A. Gray) HowellFamilyCucurbitaceaeCommon Namescoastal manrootEastern WashingtonNativeSynonymsNoneConservation StatusNotes Click on any image to enlarge it. East of Waitsburg in Lewis and Clark State Pk – Columbia Co., WAEast of Waitsburg in Lewis and Clark State Pk – Columbia Co., WAEast of Waitsburg in Lewis and Clark State Pk – Columbia Co., WA