University of Tennessee
Forest Resources AgResearch and Education Center
Oak Ridge Forest Cumberland Forest Highland Rim Forest Arboretum

Invasive Exotic Plants

Invasion of nonnative plants into rural and urban forested landscapes can have devastating effects on natural ecosystems and biodiversity. These plants displace native species and upset the natural associations between plants and animals. Invasive exotic plants occur as trees, shrubs, vines, grasses, ferns and forbs. Many of the invasive exotic plants within the Arboretum have spread from farmstead homes previously found throughout the area.

The Arboretum has taken active measures to eliminate or control the spread of nonnative invasive plants such as those listed below and to promote the use of non-invasive alternative plants.

All images are from the publication "Invasive Plants of the Eastern United States CD-ROM." The photographer is listed with the individual images. A complete list of plants can be viewed at www.invasive.com

Silktree, Mimosa
(Albizia julibrissin)

James H. Miller
USDA Forest Service
Mimosa
Chinese PrivetChinese Privet
(Ligustrum sinense)

Ted Bodner
Southern Weed Science Society
Japanese Privet
(Ligustrum japonicum)

J. S. Peterson
USDA-NRCS Plants
Japanese Privet
Princesstree, Paulownia
(Paulownia tomentosa)

James H. Miller
USDA Forest Service
Princesstree
Japanese knotweed
(Polygonum cuspidatum)

Jack Ranney
University of Tennessee
Japanese knotweed
Winter CreeperWinter Creeper
(Euonymus fortunei)

James H. Miller
USDA Forest Service
Kudsu
(Pueraria montana)

David J. Moorhead
University of Georgia
Kudsu
Oriental Bittersweet
(Celastrus orbibulatus)

James H. Miller
USDA Forest Service
Oriental Bittersweet
English IvyEnglish Ivy
(Hedera helix)

Chuck Bargeron
University of Georgia
Purple Crownvetch
(Coronilla varia)

Dan Tenaglia
www.missouriplants.com
Purple Crownvetch
Japanese honeysuckle
(Lonicera japonica)

Chuck Bargeron
University of Georgia
Japanese honeysuckle
Orange DaylilyOrange Daylily
(Hemerocallis fulva)

Dan Tenaglia
www.missouriplants.com
Common Periwinkle
(Vinca minor)

Dan Tenaglia
www.missouriplants.com
Common Periwinkle
Multiflora Rose
(Rosa multiflora)

David J. Moorhead
University of Georgia
Multiflora Rose

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University of Tennessee - Forest Resources AgResearch and Education Center
901 South Illinois Avenue, Oak Ridge, Tennessee 37830 · Telephone: 865-483-3571 · Email: UTforest@utk.edu