Hawthorn
Crataegus monogyna (Crataegus laevigata)

Small tree or large shrub, usually with spines 7–20 mm long; sometimes planted for hedges.
Leaves ± rhombic to obovate, 10–40 mm long and wide, commonly 3–7-lobed, lobes often cuneate, toothed; petiole 5–30 mm long.
Petals white or pink. Carpel 1, style 1. Pome subglobose, 8–12 mm diam., dark red; 1-seeded.