Iris genus --- iris family

dwarf crested iris (Iris cristata) -- in April -- Cherokee National Forest, southern Tennessee          blue & purple     

Rocky Mountain iris (Iris missouriensis)  -- in May -- West Valley Trail, Lory State Park, CO           blue & purple       

paleyellow iris (Iris pseudacorus) -- in June -- irrigation ditch east of Laporte, Larimer County Foothills   yellow & orange   

harlequin blueflag (Iris versicolor) -- in April -- Cherokee National Forest, southern Tennessee          blue & purple  ​