Heuchera genus --- Saxifrage family
bracted alumroot (Heuchera bracteata) -- in July -- Vedauwoo Recreation Area, southeastern Wyoming    white & cream
common alumroot (Heuchera parvifolia) -- in June -- Crosier Mountain, Roosevelt National Forest    white & cream    
common alumroot (Heuchera parvifolia) -- in April -- Homestead Trail, South Mesa Trailhead, Boulder County, CO 
Picture
common alumroot (Heuchera parvifolia) -- in May -- Horsetooth Mountain Open Space, Larimer County    yellow & orange 
common alumroot (Huechera parvifolia) -- in June -- Sand Creek National Landmark, WY                yellow & orange         
Picture
dwarf alumroot (Heuchera parvifolia)  -- in May -- Stove Prairie, Roosevelt National Forest, Larimer County foothills       green & brown