What is Multiflora Rose?

From the ISU Extenstion website: "Multiflora rose (Rosa multiflora) is native to Japan, the Koreas, and eastern China. It was brought to the U.S. in the mid to late 1800s as an ornamental plant that was valued for its showy clusters of fragrant white to pink flowers. Unfortunately the invasive potential of this plant was not realized until after it was widely used for soil erosion control, living snow fences, highway median barriers, and livestock fences in the early 1900s. Multiflora rose grows very quickly and often forms extremely dense thickets that eliminate nearby plants, reducing understory diversity and limiting growth of livestock forage in pastures. When the arching stems or canes of a multiflora rose plant reach the ground they are able to root and further spread the plant. Additionally, each plant is capable of producing hundreds of thousands of seeds per year that stay viable in the soil for 10-20 years. The fruits and seeds attract birds and small mammals which disperse the plant into new areas. Multiflora rose is classified as a noxious weed in Iowa and multiple other states in the Midwest" Multiflora Rose has curved barbs that can catch clothing and easily break skin making it very difficult to walk through.

https://naturalresources.extension.iastate.edu/encyclopedia/multiflora-rose-invasive-species-profile