Viola genus --- Violet family

hookedspur violet (Viola adunca) -- in June -- Lolo Motorway, Nez Perce-Clearwater National Forest, ID     blue & violet    

hookedspur violet (Viola adunca) -- in June -- Sportsman Lake Road, southern Wyoming

field pansy (Viola bicolor) -- in April -- J. T. Nickel Preserve, northern Oklahoma    blue & purple      

field pansy (Viola bicolor) -- in April -- Homestead Trail, South Mesa Trailhead, Boulder County, CO     blue & purple  ​​

sweet white violet (Viola blanda) -- in April -- Cherokee National Forest, southern Tennessee         white & cream   

Canadian white violet (Viola canadensis) -- in April -- Pisgah National Forest, western North Carolina     white & cream  

Canadian white violet (Viola canadensis) -- in June -- Mill Creek Link Trail, Lory State Park, CO       white & cream ​ 

Canadian white violet (Viola canadensis) -- in April -- Well Gulch Nature Trail, Lory State Park, CO    

halberdleaf yellow violet (Viola hastata) -- in April -- Pisgah National Forest, western North Carolina   yellow & orange      

small white violet (Viola macloskeyi) -- in July -- Old Fall River Road, Rocky Mountain National Park, CO       white & cream   

Nuttall's violet (Viola nuttallii)  -- in April -- Lory State Park, CO        yellow & orange        

bird's-foot violet (Viola pedata)  -- in April -- J. T. Nickel Nature Preserve, northern Oklahoma        blue & purple  ​   

downy yellow violet (Viola pubescens) -- in April -- Pisgah National Forest, western North Carolina    yellow & orange  

long-spurred violet (Viola rostrata) -- in April -- Cherokee National Forest, southern Tennessee      blue & purple  ​      

goosefoot violet (Viola purpurea ssp. venosa) -- in June -- Steens Mountain Wilderness Area, OR     yellow & orange ​

wood violet (Viola sororia) -- in April -- J.T. Nickel Nature Preserve, northern Oklahoma     blue & purple  ​