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Crataegus opaca Hook. & Arn.
Mayhaw, Riverflat hawthorn, Western mayhaw
USDA Symbol: crop
USDA Native Status: Native to U.S.
Small tree with relatively tall trunk and narrow, rounded crown; or a large shrub. River-flat hawthorn or may haw is a small tree or shrub, to 30 ft., with spiny branches and oval to oblong, dark-green leaves. Clusters of showy pink or white flowers appear before and with the leaves. Large, green to reddish fruit ripens from May to June.
The large, edible fruit is made into preserves and jellies.
Plant CharacteristicsDuration: Perennial Habit: Tree Flower:
Fruit: Size Class:
Bloom InformationBloom Color: White
Bloom Time: Feb , Mar
AL , AR , LA , MS , TX Native Distribution:
AL to e. TX, n. to s. AR Native Habitat:
Low, wet woods; creek and river bottoms USDA Native Status: L48(N)
Growing ConditionsLight Requirement:
Part Shade Soil Moisture:
Wet Soil Description:
Wet, rich soils. Conditions Comments:
Used as an ornamental or hedge in poorly drained, shady places. Fruit
makes a delicious preserve.
PropagationDescription: Stratified seed will germinate.
Seed Collection: Fruits may be hand-picked or shaken from the plant. Clean seeds from the pulp to avoid mold and fermentation. Air-dry before storing. Store in sealed, refrigerated containers.
Seed Treatment: 6-8 weeks of moist chilling improves germination.
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:
- Picayune, MS
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Record Modified: 2009-04-23
Research By: TWC Staff