Grows to 8–9 metres (26–30 feet) tall.
“The foliage is browsed by cattle and sheep. Various birds, including quail, the Hungarian partridge, and ring-necked pheasant feed on the berries, as do bears and other animals. Magpies nest in the branches. The species is a larval host to the gray hairstreak, mourning cloak, pale tiger swallowtail, and western tiger swallowtail.” (Wikimedia)
Photos:
Crataegus douglasii fruits by Kymi (CC SA 3.0)
Crataegus douglasii flowers by Nadiatalent (Public Domain, Wikimedia)
Tree © Oregon State Univeristy.