Crataegus saligna
Crataegus saligna is a species of hawthorn known by the common name willow hawthorn that is rarely cultivated and rather uncommon in the wild. Its native range is wet areas of western Colorado and northeastern Utah. It is a shrub or small tree with thin, elongated leaves, small flowers, small black fruit, and reddish bark.
It is related to C. erythropoda and C. rivularis.