aka Polygonum bistortoides, American Bistort, Western Bistort, Mountain-meadow Knotweed, Bottle Brush. The common name refers to the thick and knotted roots which has provided an important source of food to native peoples. The ‘bottle brush’ ragged look of the white or reddish flower heads is created primarily by eight stamens which protrude from each blossom. Stems rise 10″ – 30″ tall holding up its little white cluster above its neighbors in the meadow. Commonly found in moist meadows, near streams to 6,500′ elevation. (Unfortunately no photos show the plant in fruit in order to help decipher the meaning of scientific name.)