Oleaster (Elaeagnaceae) family
Russian olive (Elaeagnus angustifolia) -- in June -- Bellvue, CO yellow & orange CO-F
Russian olive (Elaeagnus angustifolia) -- in January -- Bellvue, CO
Russian olive (Elaeagnus angustifolia) -- in April -- Wellington SWA (Cobb Lake), Larimer County, CO
Russian olive (Elaeagnus angustifolia) -- in August -- Redwing Marsh, Fort Collins Natural Area, Larimer County, CO
silver buffaloberry (Shepherdia argentea) -- in March -- Barr Lake State Park, CO yellow & orange