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In page Crataegus:

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The "haws" or fruits of the common hawthorn, C. monogyna, are edible. In the United Kingdom, they are sometimes used to make a jelly or homemade wine.[1] The leaves are edible, and if picked in spring when still young, are tender enough to be used in salads.[2] The young leaves and flower buds, which are also edible, are known as "bread and cheese" in rural England.[1] In the southern United States, fruits of three native species, C. aestivalis, C. opaca and C. rufula, are collectively known as mayhaws and are made into conserves and pies and fermented into wine.[3] The Kutenai people of northwestern North America used red and black hawthorn fruit for food.[citation needed]