Crataegus mercerensis is a hawthorn that is considered to be a synonym of either C. chrysocarpa[1] or of C. dodgei.[2]

References

  1. ^ ITIS entry for Crataegus mercerensis
  2. ^ Phipps, J.B.; Robertson, K.R.; Smith, P.G.; Rohrer, J.R. (1990). "A checklist of the subfamily Maloideae (Rosaceae)". Canadian Journal of Botany. 68 (10): 2209–69. doi:10.1139/b90-288.