Crataegus × vailiae is a hawthorn hybrid that primarily occurs in Virginia, Tennessee, North Carolina and Georgia.[1] It appears to be a hybrid between C. uniflora and a member of series Macracanthae, probably C. calpodendron.[1]

References

  1. ^ a b c Phipps, J.B.; Dvorsky, K. (2006). Crataegus series Parvifoliae and its putative hybrids in the southeastern United States. SIDA, Contributions to Botany. 22(1): 423–445.