Crataegus succulenta Schrad. ex Link
Family: Rosaceae
fleshy hawthorn, succulent hawthorn
[Crataegus rutila Sarg.,  more...]
Crataegus succulenta image
from USDA Plants website  
Crataegus succulenta image
Crataegus succulenta image
University of Wisconsin - Madison (WIS-VP)  
Etymology: Crataegus: Greek cratos for "strength" because of the hardness of the wood
Plants: perennial shrub