Rosa acicularis
Rosa acicularis is a flowering plant in the Rosaceae family. It is commonly known as the prickly wild rose, prickly rose, bristly rose, wild rose or Arctic rose. It is a species of wild rose with a Holarctic distribution in northern regions of Asia, Europe, and North America.
Description
Rosa acicularis is a deciduous shrub growing 1–3 m tall. The leaves are pinnate, 7–14 cm long, with three to seven leaflets. The leaflets are ovate, with serrate margins. The flowers are pink, 3.5–5 cm diameter; the hips are red, pear-shaped to ovoid, 10–15 mm diameter. Its native habitats include thickets, stream banks, rocky bluffs, and wooded hillsides.The ploidy of this rose species is variable. Botanical authorities have listed it as tetraploid and hexaploid in North America, and octoploid in Eurasia, including China. On the northern Great Plains its populations are generally tetraploid. Hexaploid populations exist in the Yukon.