piperia genus -- Orchid family  

white bog orchid (Piperia dilatata var. dilatata) -- in June -- Glacier National Park, MT           white & cream         

​white bog orchid (Piperia dilatata var. dilatata) -- in July -- Routt National Forest, CO    

​white bog orchid (Piperia dilatata var. dilatata) -- in August -- Deadman Road, Red Feather Lakes Area, CO 

white bog orchid (Piperia dilatata var. dilatata) -- in September -- Marshall Pass Road, Saguache County, CO 

Sierra bog orchid (Piperia dilatata var. leucostachys) -- in July -- Lassen Volcanic National Park, CA         white & cream   

slender-spire orchid (Piperia unalascensis) -- in July -- Grand Teton National Park, WY     green & brown