dieteria genus --- Aster Subfamily 2.1 

fall tansyaster (Dieteria asteroides) -- in September -- Pine Campground, Lincoln National Forest, NM  blue & purple     

Bigelow's tansyaster (Dieteria bigelovii var. bigelovii) -- in July -- Mount Evans, Clear Creek County, CO

Bigelow's tansyaster (Dieteria bigelovii var. bigelovii -- in September -- Old Fall River Road, RMNP, CO blue & purple   

Bigelow's tansyaster (Dieteria bigelovii var. bigelovii) -- in August -- Sportsman Lake Road, Wyoming    blue & purple    

Bigelow's tansyaster (Dieteria bigelovii var. bigelovii) -- in September -- Trail Ridge Road, RMNP  blue & purple   

Bigelow's tansyaster (Dieteria bigelovii var. bigelovii) -- in August -- Hermit Park Open Space, Larimer County

Bigelow's tansyaster (Dieteria bigelovii var. bigelovii) -- in September --Parvin Lake, State Wildlife Area, Larimer County, CO

hoary tansyaster (Dieteria canescens) -- in March -- Globe, Tonto National Forest, AZ   blue & purple ​  

hoary tansyaster (Dieteria canescens) -- in September -- Cimarron Canyon State Park, NM   blue & purple   

hoary tansyaster (Dieteria canescens) -- in August -- Bluff Lake Nature Center, Denver Area, CO