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On this day in Lewis & Clark history...

The Expedition struggles to move the boats past sandbars and channels clogged with driftwood. They make 12½ miles camping south of present Lupus, Missouri. York gathers cress to supplement their diet.

From the journals...

here my Servent York Swam to the Sand bar to geather greens for our Dinner and returnd with a Sufficent quantity wild Creases [Cresses] or Teng [Tongue] grass

William Clark

Bog yellow cress, Rorippa palustris

Low plant with large green leaves

Photo created by unknown photographer who has released it to the public domain.