Crataegus calpodendron is a species of hawthorn native to much of the eastern United States and to Ontario, Canada. The common name late hawthorn refers to the flowering time, which is later than most North American hawthorns.[1]

References

  1. ^ Phipps, J.B.; O’Kennon, R.J.; Lance, R.W. (2003). Hawthorns and medlars. Cambridge, U.K.: Royal Horticultural Society. ISBN 0881925918.

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