Description
Crataegus monogyna, known as common hawthorn, one-seed hawthorn, or single-seeded hawthorn, is a species of flowering plant in the rose family Rosaceae. It is native to Europe, northwestern Africa, and West Asia, but has been introduced in many other parts of the world.
The common hawthorn is a shrub or small tree up to about 10 metres (33 feet) tall, with a dense crown. The bark is dull brown with vertical orange cracks. The younger stems bear sharp thorns, about 12.5 millimetres (1?2 inch) long. The leaves are 20 to 40 mm (3?4 to 1+1?2 in) long, obovate, and deeply lobed, sometimes almost to the midrib, with the lobes spreading at a wide angle. The upper surface is dark green above and paler underneath.