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by | Mar 19, 2018 | Rose

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Crataegus rivularis is a species of hawthorn known by the common name river hawthorn. It is native to the intermontane region of the northwestern United States, situated between the coastal ranges and the Rocky Mountains.[2]

C. rivularis is one of the black-fruited hawthorn species. It is closely related to C. erythropoda, and less closely related to C. saligna.[2][3]

Images

  • Young fruit
    Young fruit
  • Young bark.
    Young bark.

See also

References

  1. ^ IUCN SSC Global Tree Specialist Group & Botanic Gardens Conservation International (BGCI) (2020). "Crataegus rivularis". IUCN Red List of Threatened Species. 2020: e.T152910829A152910831. doi:10.2305/IUCN.UK.2020-1.RLTS.T152910829A152910831.en. Retrieved 2 June 2024.
  2. ^ a b Phipps, J.B.; O’Kennon, R.J.; Lance, R.W. (2003). Hawthorns and medlars. Cambridge, U.K.: Royal Horticultural Society. ISBN 0881925918.
  3. ^ Phipps, J.B. (1999). "The relationships of the American black-fruited hawthorns Crataegus erythropoda, C. rivularis, C. saligna and C. brachyacantha to C. ser. Douglasianae (Rosaceae)". SIDA, Contributions to Botany. 18 (3): 647–660. JSTOR 41968885.


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