Crataegus rivularis

Crataegus rivularis
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Crataegus
Series:	Cerrones J.B.Phipps[1]
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 U.S., 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.

See also

• List of hawthorn species with black fruit

References and external links

1. ^ ^{a b c} Phipps, J.B., O’Kennon, R.J., Lance, R.W. (2003). Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.
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.

• USDA Plants Profile