Crataegus rivularis

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Crataegus rivularis
River hawthorn flowers 1.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Crataegus
Section: Crataegus sect. Douglasia
Series: Crataegus ser. Cerrones
Species: C. rivularis
Binomial name
Crataegus rivularis

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.[1]

C. rivularis is one of the black-fruited hawthorn species. It is closely related to C. erythropoda, and less closely related to C. saligna.[1][2]

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References[edit]

  1. ^ a b Phipps, J.B.; O’Kennon, R.J.; Lance, R.W. (2003). Hawthorns and medlars. Cambridge, U.K.: Royal Horticultural Society. ISBN 0881925918.
  2. ^ 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.