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Rosa multiflora Thunb. ex Murr.
Multiflora Rose
Rosaceae — Rose family
Invasive non-native
Rosa multiflora
New Castle County
May 2001
Rosa multiflora
New Castle County
May 2001
Rosa multiflora
Middle Run Valley Natural Area
September 2009
Rosa multiflora
Woodlawn Tract
April 2016
Witch's-broom or rose rosette.
Rosa multiflora
White Clay Creek State Park -- Creek Road
May 2016
Rosa multiflora
May 2018
Rosa multiflora
May 2018
Rosa multiflora
Ashland
May 2019
The pistils are united into a long column, a distinguishing feature of the species.
Rosa multiflora
Ashland
May 2019
Leaves have 7-9 leaflets.
Rosa multiflora
Ashland
May 2019
Fringed stipules are another distinguishing feature of this species.