Salix genus --- Willow family

white willow (Salix alba) -- in April -- Arapaho Bend Natural Area in Fort Collins, CO     green & brown   

peachleaf willow (Salix amygdaloides) -- in September -- Ross, Fort Collins Natural Area, Larimer County, CO

arctic willow (Salix arctica) -- in July -- Old Fall River Road, Rocky Mountain National Park, CO    white & cream   

Bebb willow (Salix bebbiana) -- in June -- Sportsman Lake Road, southern Wyoming        green & brown

narrowleaf willow (Salix exigua) -- in May -- Pineridge Natural Area, Fort Collins, CO      yellow & orange    

narrowleaf willow (Salix exigua) -- in May -- Cathy Fromme Prairie Natural Area, Fort Collins, CO   yellow & orange  

narrowleaf willow (Salix exigua) -- in September -- Williams, Fort Collins Natural Area, Larimer County, CO

grayleaf willow (Salix glauca) -- in September -- Trail Ridge Road, Rocky Mountain National Park, CO   white & cream   

snow willow (Salix nivalis) -- in August -- Baker Pass, Never Summer Mountains, Routt National Forest, CO       red & pink     

diamondleaf willow (Salix planifolia) -- in September -- Trail Ridge Road, Rocky Mountain National Park CO    white & cream    

Scouler's willow (Salix scouleriana) -- in May -- upper Rist Canyon, Roosevelt National Forest, CO  white & cream ​  

crack willow (Salix x fragilis) -- in May -- Gustav Swanson, Fort Collins Natural Area, CO     green & brown

weeping willow (Salix x sepulcralis) -- in February -- near Poudre River, Fort Collins, CO     green & brown