Malus toringo

One of the crabapple species that has escaped into natural areas and is considered invasive in many. The buds are pink, the flowers white, fruit is very small and yellow. The tree is small, typically 9-10' in height and often slightly weeping form. In the wild the species can be much larger. The leaves are unlobed in spring but become lobed later in the season. For a description of the variety of forms, see International Dendrology Society - Trees & Shrubs Online (here), the Crabapple Conundrum link below and a great discussion of the taxonomy, history & photos(!) at Bluegrass Woodland "The Invasive Toringo Crabapple—Our Next ‘Bradford Pear’ in Kentucky?" (here).