Japanese honeysuckle USDA PLANTS Symbol: LOJA
U.S. Nativity: Exotic
Habit: Vines
Lonicera japonica Thunb.

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Taxonomic Rank: Magnoliopsida: Dipsacales: Caprifoliaceae
Synonym(s): Chinese honeysuckle
Native Range: E. Asia (REHD, BAIL);

Japanese honeysuckle is an evergreen to semi-evergreen vine that can be found either trailing or climbing to over 80 ft. (24 m) in length. Leaves are opposite, sessile, pubescent, oval and 1 to 2.5 in. (2.5-6.4 cm) long. Flowering occurs from April to July, when showy, fragrant, tubular, whitish-pink to yellow flowers develop in the axils of the leaves. Fruits develop in the fall and are small, shiny black berries. Japanese honeysuckle invades a variety of habitats including forest floors, canopies, roadsides, wetlands, and disturbed areas. Japanese honeysuckle can girdle small saplings by twining around them, and it can form dense mats in the canopies of trees, shading everything below. A native of eastern Asia, it was first introduced into North America in 1806 in Long Island, NY. Japanese honeysuckle has been planted widely throughout the United States as an ornamental, for erosion control, and for wildlife habitat.

Identification, Biology, Control and Management Resources

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


Flower(s);
Chuck Bargeron, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Chuck Bargeron, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Foliage; Spring foliage with wavy margins
James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org
Additional Resolutions & Image Usage

Foliage; Top and bottom (silvery) in May
James H. Miller, USDA Forest Service, Bugwood.org
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Plant(s);
Tom Heutte, USDA Forest Service, Bugwood.org
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Foliage; Flowers and foliage
Chuck Bargeron, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Troy Evans, Great Smoky Mountains National Park, Bugwood.org
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Fruit(s); Immature fruit
Chuck Bargeron, University of Georgia, Bugwood.org
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Fruit(s); October
James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org
Additional Resolutions & Image Usage

Seed(s);
Bruce Ackley, The Ohio State University, Bugwood.org
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Twig(s)/Shoot(s); September
James H. Miller, USDA Forest Service, Bugwood.org
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Plant(s); in flower
Chris Evans, Illinois Wildlife Action Plan, Bugwood.org
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Plant(s);
Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org
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Infestation;
Chuck Bargeron, University of Georgia, Bugwood.org
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Infestation; vines
Chuck Bargeron, University of Georgia, Bugwood.org
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Infestation;
Chuck Bargeron, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Infestation;
Chuck Bargeron, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Plant(s); Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 280.
USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org
Additional Resolutions & Image Usage

Plant(s); USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service.
USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org
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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.

U.S. National Parks where reported invasive:
Antietam National Battlefield (Maryland)
Appomattox Court House National Historical Park (Virginia)
Blue Ridge Parkway (North Carolina)
Booker T Washington National Monument (Virginia)
Catoctin Mountain Park (Maryland)
Chesapeake and Ohio Canal National Historical Park (Maryland, Washington, D.C., and West Virginia)
Colonial National Historical Park (Virginia)
Eisenhower National Historic Site (Pennsylvania)
Fredericksburg & Spotsylvania National Military Park (Virginia)
George Washington Birthplace National Monument (Virginia)
Gettysburg National Military Park (Pennsylvania)
Great Smoky Mountains National Park (North Carolina & Tennessee)
Harpers Ferry National Historical Park (West Virginia)
Indiana Dunes National Lakeshore (Indiana)
Kings Mountain National Military Park (South Carolina)
Manassas National Battlefield Park (Virginia)
Minute Man National Historical Park (Massachusetts)
Monocacy National Battlefield Park (Maryland)
National Capital Parks Central (Washington, D.C.)
National Capital Parks East (Washington, D.C.)
Petersburg National Battlefield (Virginia)
Prince William Forest Park (Virginia)
Richmond National Battlefield Park (Virginia)
Rock Creek National Park (Washington, D.C.)
San Antonio Missions National Historical Park (Texas)
Shenandoah National Park (Virginia)
Stones River National Battlefield (Tennessee)
Thomas Stone National Historic Site (Maryland)
Vicksburg National Military Park (Mississippi)
Wolf Trap National Park (Virginia)



Invasive Listing Sources:
Alabama Invasive Plant Council
City of Ann Arbor Michigan Parks and Recreation
Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, 1994.
Connecticut Invasive Plant Working Group
Delaware Natural Resources and Environmental Control, 2004
Faith Campbell, 1998
Florida Exotic Pest Plant Council
Georgia Exotic Pest Plant Council
Hoffman, R. & K. Kearns, Eds. 1997. Wisconsin manual of control recommendations for ecologically invasive plants. Wisconsin Dept. Natural Resources, Bureau of Endangered Resources. Madison, Wisconsin. 102pp.
Indiana Native Plant and Wildflower Society
Invasive Plant Council of New York State
Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
Kentucky Exotic Pest Plant Council
Maryland Cooperative Extension Service.  2003. Invasive Plant Control in Maryland. Home and Garden Information Center, Home and Garden Mimeo HG88. 4 pp.
Maryland Department of Natural Resources, 1994
Mid-Atlantic Exotic Pest Plant Council, 2005
Missouri Department of Conservation,
Native Plant Society of Oregon, 2008
New Hampshire Invasive Species Committee. 2005. Guide to Invasive Upland Plant Species in New Hampshire. New Hampshire Department of Agriculture,  Markets and Food Plant Industry Division and New Hampshire Invasive Species Committee.
New Jersey Department of Agriculture, Division of Plant Industry, 2004
North Carolina Division of Parks and Recreation, Department of Environment and Natural Resources, 1998
Pennypack Ecological Restoration Trust, Pennsylvania.
Reichard, Sarah. 1994.  Assessing the potential of invasiveness in woody plants introduced in North America. University of Washington Ph.D. dissertation.
Rhode Island Natural History Society,
South Carolina Exotic Pest Plant Council
Tatyana Livschultz, Pennsylvania survey of invasive plants,
Tennessee Exotic Pest Plant Council
University of Hawaii, Botany Department, Hawaiian Alien Plant Studies, 1998
Vermont Department of Environmental Conservation
Virginia Department of Conservation and Recreation, 2009