Crataegus holmesiana Ashe
Family: Rosaceae
Holmes' hawthorn
[Crataegus anomala Sarg.,  more...]
Crataegus holmesiana image
from USDA Plants website  
Crataegus holmesiana image
University of Wisconsin - Madison (WIS-VP)  
Etymology: Crataegus: Greek cratos for "strength" because of the hardness of the wood
Plants: perennial shrub