Spreading through seed, root sprouting, and layering, multiflora rose, Rosa multiflora, does well on poor growing sites with full to moderate sunlight but tolerates a variety of sites. It is often found along forest edges, abandoned fields, and roadsides but can survive under a forest canopy as well. Seeds can remain viable in the soil seed bank for up to 20 years.
Established invasions of multiflora rose create dense thickets, crowding out native flora and preventing native plant growth underneath. It grows into an impenetrable living fence which can create barriers to movement.
Multiflora rose was brought to the U.S. in the late 1800s as rootstock for cultivated roses. Natural resource professionals then recommended planting it to prevent soil erosion, provide habitat and food for wildlife, and to act as a natural fence for livestock.
Multiflora rose is listed as an invasive plant in Illinois through the Illinois Exotic Weed Act.
Multiflora rose is a thorn-covered shrub or vine that reaches heights of 10 feet. Its crown has a poor structure, resulting in it often laying over. Its leaves are pinnately compound with 5 to 11 toothed leaflets. At the base of the compound leaves you can find a fringed stipule, which is the easiest way to tell this rose apart from native roses. It flowers late in late spring, with clusters of five-petaled, white blooms about 1.5 inches across, Flowers develop into orange to red rosehips that are 1/4 inch wide.
Presented by Ryan Pankau, Extension Educator, Horticulture Illinois forests are unique plant communities of towering trees as well as tiny, spring wildflowers. Invasive plants threaten native plant diversity in forest communities across Illinois by out-competing our natives for water, light, and...
