Crataegus monogyna (Introduced)

Crataegus monogyna Jacq., Fl. Austriac. 3: 50, pl. 292, f.1 50 1775. ;
.
Europe to Caucasus, N. Africa to Iraq: Albania, Algeria, Austria, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Central European Rus, Corse, Cyprus, Czechoslovakia, Denmark, East Aegean Is., East European Russia, Finland, France, Germany, Great Britain, Greece, Hungary, Iraq, Ireland, Italy, Kriti, Krym, Lebanon-Syria, Libya, Morocco, Netherlands, North Caucasus, Norway, Palestine, Poland, Portugal, Romania, Sardegna, Sicilia, Sinai, Spain, Sweden, Switzerland, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Ukraine, Yugoslavia; Introduced into: Argentina South, British Columbia, California, Cape Provinces, Colorado, Connecticut, Delaware, Free State, Illinois, Indiana, Kentucky, Madeira, Maine, Massachusetts, Michigan, Minnesota, New Brunswick, New Hampshire, New Jersey, New South Wales, New York, New Zealand North, New Zealand South, Nova Scotia, Ohio, Ontario, Oregon, Pennsylvania, Prince Edward I., Queensland, Québec, Rhode I., South Australia, Tasmania, Vermont, Victoria, Washington, Wisconsin as per POWO;

English Hawthorn, may, mayblossom, maythorn, quickthorn, whitethorn, motherdie, haw;

Deciduous tree with thorns on twigs; leaves lobed ovate to deltoid with cuneate base, with 1-3 lobes on each side, petiole up to 3 cm long, margins weakly and often few-toothed at lobe apices, veins 2–5 per side; flowers white, up to 15 mm across, in 5-15 flowered inflrescences; sepals 1.5–2.5 mm, margins entire, apex acute or obtuse; stamens 15–20, anthers pink-purple; pomes sometimes bright, usually dark red, orbicular.