Crataegus ambitiosa, the Grand Rapids hawthorn, is a species of hawthorn endemic to Michigan, in the Great Lakes region of North America.[1] It has been placed in series Silvicolae.[2] It can grow up to 20 feet (6.1 metres) tall.[3]

References

  1. ^ USDA Plants Profile - Crataegus ambitiosa, accessed 12.2.2010
  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.
  3. ^ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2023-12-22.