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Crataegus douglasii Lindl.
Synonym(s): Crataegus columbiana, Crataegus douglasii var. douglasii
USDA Symbol: CRDO2
A thorny, much-branched shrub or small tree from 6-30 ft. in height. Small tree with compact, rounded crown of stout, spreading branches; often a thicket-forming shrub. Twigs are reddish and bear thick, oval, toothed leaves. White flowers occur in dense, terminal clusters and are followed by blue-black berries.
This species is a handsome ornamental with showy white flowers, glossy foliage, and odd, shiny black fruits. It is named for its discoverer, David Douglas (1798-1834), the Scottish botanical explorer. Cattle and sheep browse the foliage; pheasants, partridges, quail, and other birds consume the berries. The most widespread western member of its genus, Black Hawthorn is also the only species north to southeastern Alaska.
Plant CharacteristicsDuration: Perennial Habit: Shrub Leaf:
Green Autumn Foliage:
Black, Purple Size Class:
Bloom InformationBloom Color: White
Bloom Time: May , Jun
, WY Canada: AB
, SK Native Distribution: AK
to n. CA; widely distributed in the Rockies; also occuring in s.w. Ont., n. MI
& MN Native Habitat:
Open woods; rocky stream banks; meadows
Growing ConditionsWater Use: High
Light Requirement: Sun , Part Shade , Shade
Soil Moisture: Moist , Wet
CaCO3 Tolerance: Low
Soil Description: Moist soils.
Conditions Comments: Not Available
Only a few birds like the fruit
of Crataegus and, consequently, they remain effective for a long time. Warning:
Plant has thorns or prickles. Conspicuous Flowers:
Birds , Butterflies Larval Host:
Gray Hairstreak, Mourning Cloak, and Azure Butterflies.
Stored/treated seed will germinate. For fresh, dried fruit,
soak in water 2-3 days to soften, remove pulp and sow immediately. This gives fair results. Seed Collection:
Not Available Seed Treatment:
6-8 weeks of moist chilling improves germination of stored seed. Scarification may also be necessary.
Butterflies and Moths of North America (BAMONA)
is a larval host and/or nectar source for:
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Santa Barbara Botanic Garden
- Santa Barbara, CANative Seed Network
- Corvallis, OR
Record Last Modified: 2013-06-21
Research By: TWC Staff