Crataegus rivularis

Crataegus rivularis
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Crataegus
Section:	Douglasia
Series:	Cerrones; J.B.Phipps
Species:	C. rivularis
Binomial name
	Crataegus rivularis; Nutt. ex Torr. & A.Gray

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]

Images

Young fruit
Young bark.

References

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

[1]

[2]

Images

See also

References