[Mints: The Genus Mentha in the Columbia River Gorge of Oregon and Washington]

Pennyroyal

Mentha pulegium

Pennyroyal: Mentha pulegium

Pennyroyal as seen along the Columbia River Shore at the Sandy River delta.................September 25, 2010.

Verticil and subtending leaf of Pennyroyal: Mentha pulegium - Verticils of Pennyroyal: Mentha pulegium

Close-ups of the verticils of pennyroyal as seen along the Columbia River Shore at the Sandy River delta.................September 25, 2010. Note the leaves subtending each verticil which are small and deflexed.

Pennyroyal: Mentha pulegium - Pennyroyal: Mentha pulegium

Pennyroyal growing amongst other forbs along the Columbia River shoreline at the east side of the Sandy River Delta, Troutdale, Oregon..............September 8, 2012.

Paul Slichter