Bistorta genus -- Buckwheat Family

American bistort (Bistorta bistortoides) -- in July -- Old Fall River Road, Rocky Mountain National Park    white & cream    

American bistort (Bistorta bistortoides) -- in July -- Long Draw Road, Larimer County montane, CO

American bistort (Bistorta bistortoides) -- in June -- Steens Mountain Wilderness Area, OR

alpine bistort (Bistorta vivipara) -- in July -- Long Draw Road, Larimer County montane, CO

alpine bistort (Bistorta vivipara) -- in July -- Trail Ridge Road, Rocky Mountain National Park      white & cream     

alpine bistort (Bistorta vivipara) -- in August -- Independence Pass, border of Lake and Pitkin Counties, CO

alpine bistort (Bistorta vivipara) -- in August -- Snowy Range, Medicine Bow National Forest, WY