Multi-flora Rose

Keep and eye out for this invasive plant. There are only a few known patches of multi-flora rose in the wild in Calumet County. If you see this plant, eliminate it to prevent it from becoming a greater problem. Multi-flora rose is a dense spreading shrub with wide, arching canes and stiff curved thorns. Older plants may have a root crown diameter of 8 inches or more and can reach a height of 15 feet. The leaflets are nearly smooth on the upper surface and paler with short hairs on the underside. It blossoms in late spring with numerous white flowers. Each plant may produce up to 500,000 seeds. By law, multi-flora rose is considered a nuisance weed, and cannot be sold or propagated. It is also listed as "restricted" in NR 40. For additional information, visit http://dnr.wi.gov/invasives/fact/rose.htm