Also called white haw.  Part of hawthorn / thornapple  genus Crataegus and rose  family Rosaceae and order Rosales.

Native to 🇨🇦 Canada and 🇺🇸 USA central and East.

Uses by native peoples
(Ethnobotany database)

Crataegus hosts caterpillars of 160 species
of butterflies and moths, in some areas.

Bloom dates (Illinois) (.pdf).

Learn more about dotted hawthorn Crataegus punctata

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