geum genus --- rose subfamily 1  

yellow avens (Geum aleppicum) -- in June -- Waterfall Trail, Lory State Park, CO     yellow & orange  ​      

yellow avens (Geum aleppicum) -- in June -- Bridal Veil Falls Trail, Rocky Mountain National Park, CO

bur avens (Geum macrophyllum var. perincisum) -- in July -- Red Feather Lakes, Roosevelt National Forest, CO       yellow & orange       

bur avens (Geum macrophyllum var. perincisum)  -- in September -- Hidden Valley, Rocky Mountain National Park, CO    yellow & orange  ​  

bur avens (Geum macrophyllum var. perincisum) -- in July -- Buffalo Pass Road, Jackson County, CO  

purple avens (Geum rivale) -- in July -- Red Feather Lakes, Roosevelt National Forest, CO         blue & purple   

purple avens (Geum rivale) -- in July -- Laramie River Road, Larimer County, CO

alpine avens (Geum rossii var. turbinatum) -- in July -- Old Fall River Road, RMNP, CO    yellow & orange  ​   

alpine avens (Geum rossii var. turbinatum) -- in July -- Mount Evans, Clear Creek County, CO

alpine avens (Geum rossii var. turbinatum) -- in August -- Independence Pass, border of Lake and Pitkin Counties, CO

alpine avens (Geum rossii var. turbinatum) -- in Sept. -- Trail Ridge Road, RMNP, CO    yellow & orange  ​   

prairie smoke (Geum triflorum var. triflorum) -- in May  -- Pingree Park, Roosevelt National Forest, CO         red & pink   

prairie smoke (Geum triflorum) -- in June -- Steens Mountain Wilderness Area, OR