Rosa acicularis, also known as the prickly wild rose, the prickly rose, the bristly rose and the Arctic rose.
It is a species of wild rose with a distribution in the northern regions of Asia, Europe, and North America.
It is a deciduous shrub growing 1–3 m tall. The leaves are pinnate, 7–14 cm long, with three to seven leaflets.
The flowers are pink (rarely white), 3.5–5 cm diameter; the hips are red, pear-shaped to ovoid, 10–15 mm diameter.
Reference: Wikipedia