Crataegus laevigata (Poiret) D.C., Hawthorn: Flowering tops, new leaf growth and green growth shoots of spring are harvested and decocted for bioflavonoids. (More)

See as an edible wild plant.

As an edible flower and flower brandy recipe.

The hawthorn fruit is harvested in Michigan about the end of August.  I freeze some berries.  Slice and dry some others and munch on a few out of hand. 

Patent: Preventing sudden death from cardiac arrest.

Native American Medicine:   C. douglasii (Lindl.) Leaves were chewed and used as a cold poultice over wounds, swellings and burns.  Infusion of leaf end shoots given for diarrhea.  Root decoction of eastern varieties used for arthritic, muscle and joint pain.  Root decoction of eastern species also used for treating irregular menses (gynecological aid) and tuberculosis.  Scarification with thorn for treating arthritis (scarification:  beating, whipping or thrashing around arthritic joint causing numerous piercing with the thorns:  see our video:  Little Medicine).  Needles also used to sew and for piercing infected wounds and boils.   I prefer a sharpened piece of slippery elm for piercing boils and such because of its anti-oxidant and anti-infective qualities.  The sap, root and bark were decocted and used for digestive problems and problems in the stomach.  Chippewa and other eastern tribes used the thorns of "Thorn Apple" as piercing tools. 

Cork Screw Hawthorn, C. crusgalli   Eastern and S. Eastern United States.
Silver King, C. viridis.  East and S. Eastern United States