Japanese privet USDA PLANTS Symbol: LIJA
U.S. Nativity: Exotic
Habit: Shrub or Subshrub Hardwood Trees
Ligustrum japonicum Thunb.

Jump to: Resources | Images | Distribution Maps | Native Alternatives | Sources
Taxonomic Rank: Magnoliopsida: Scrophulariales: Oleaceae
Native Range: Japan, Korea (REHD, BAIL);

Japanese privet is a thick, evergreen shrub that grows up to 20 ft. (6.1 m) in height. The trunks usually occur as multiple stems with many long, leafy branches. Leaves are opposite, oval, up to 2 in. (5.1 cm) long, with a pointed apex and often with margins that are slightly rolled. Flowering occurs in spring to summer, when very abundant, white flowers occur in clusters at the end of branches. Fruits are 0.2 in. (0.5 cm) wide, dark purple to black berries (drupes) that persist into winter. Japanese privet commonly forms dense thickets in fields or forest understories. It shades and out-competes many native species, and once established is very difficult to remove. Privet was introduced into the United States in the early 1800s. It is commonly used as an ornamental shrub and for hedgerows. Several privet species occur and they are very hard to distinguish. Japanese privet is sometimes set apart by the thickness and glossiness of the leaves. Glossy privet (L. lucidum W.T. Aiton) also has thick, glossy leaves, but the leaves are usually larger (3-6 in. [5-15 cm] long).

Identification, Biology, Control and Management Resources

Selected Images from Invasive.orgView All Images at Invasive.org


Foliage; July
James H. Miller, USDA Forest Service, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
J. Scott Peterson, USDA NRCS PLANTS Database, Bugwood.org
Additional Resolutions & Image Usage

Plant(s);
J. Scott Peterson, USDA NRCS PLANTS Database, Bugwood.org
Additional Resolutions & Image Usage

Seed(s);
Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org
Additional Resolutions & Image Usage

EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

Native Alternatives:
Agarista populifolia (Florida hobblebush)
Arctostaphylos columbiana (hairy manzanita)
Arctostaphylos patula (greenleaf manzanita)
Ceanothus velutinus (snowbrush ceanothus)
Forestiera acuminata (eastern swampprivet)
Forestiera pubescens var. pubescens (stretchberry)
Illicium floridanum (Florida anisetree)
Ilex glabra (inkberry)
Ilex vomitoria (yaupon)
Leucophyllum frutescens (Texas barometer bush)
Lindera benzoin (northern spicebush)
Lithocarpus densiflorus (tanoak)
Malpighia glabra (wild crapemyrtle)
Morella californica (California wax myrtle)
Morella cerifera (wax myrtle)
Osmanthus americanus (devilwood)
Photinia melanocarpa (black chokeberry)
Photinia pyrifolia (red chokeberry)
Prunus caroliniana (Carolina laurelcherry)
Rhus virens (evergreen sumac)
Viburnum prunifolium (blackhaw)


More Information on Native Plants at:
www.beplantwise.org


PlantWise is a partnership between the National Park Service, Lady Bird Johnson Wildflower Center, The Garden Club of America and The National Invasive Species Council to prevent harmful invasive plants from invading natural areas.



U.S. National Parks where reported invasive:
San Antonio Missions National Historical Park (Texas)



Invasive Listing Sources:
Alabama Invasive Plant Council
Faith Campbell, 1998. Plants that Hog the Garden: Invasive Plants in the United States. Fine Gardening Online
Georgia Exotic Pest Plant Council
John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
Reichard, Sarah. 1994.  Assessing the potential of invasiveness in woody plants introduced in North America. University of Washington Ph.D. dissertation.
South Carolina Exotic Pest Plant Council
Tennessee Exotic Pest Plant Council