Amur honeysuckle USDA PLANTS Symbol: LOMA6
U.S. Nativity: Exotic
Habit: Shrub or Subshrub
Lonicera maackii (Rupr.) Herder

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Taxonomic Rank: Magnoliopsida: Dipsacales: Caprifoliaceae
Synonym(s): Amur bush honeysuckle
Native Range: Manchuria, Korea (REHD); Asia (BAIL);

Appearance
Lonicera maackii is a woody perennial shrub that can grow up to 16.5 ft. (5 m) in height.
Foliage
The oppositely arranged leaves are ovate to lance-ovate in shape and measure 1.3-3.3 in. (3.5-8.5 cm) long. The tips of the leaves are acuminate. The leaves are dark green above and lighter on the lower surface. The veins of the leaves are pubescent.
Flowers
The white flowers are found in erect pairs that are on peduncles shorter than the petioles. The flowers measure 0.6-0.75 in. (1.5-2 cm) long and are bilabiate. The flowers appear on the plant from late May to early June, which is later than the other honeysuckles.
Fruit
The fruit are dark red in color, spherical in shape and measure 0.25 in. (6 mm) in diameter. The fruit become ripe on the plant in the late fall.
Ecological Threat
Lonicera maackii can form large stands that prevent native shrubs and herbaceous understory plants from growing. The fruits persist on the branches into the winter, when birds feed on them. In the spring, Lonicera maackii is one of the first plants to leaf out, giving it a competitive advantage. This shrub can bear fruit when it is as young as 3 to 5 years old. Though Lonicera maackii has not yet become a major problem in New England, it is very troublesome in the southern and midwestern parts of the country.

Identification, Biology, Control and Management Resources

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


Plant(s);
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage

Plant(s); Planted along fence
Chuck Bargeron, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Plant(s); Brought to south Georgia from Missouri
David J. Moorhead, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

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

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

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

Fruit(s);
Chris Evans, University of Illinois, Bugwood.org
Additional Resolutions & Image Usage

Flower(s); Flowers
John M. Randall, The Nature Conservancy, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Annemarie Smith, ODNR Division of Forestry, Bugwood.org
Additional Resolutions & Image Usage

Seedling(s);
David J. Moorhead, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Bark; in December
James H. Miller, USDA Forest Service, Bugwood.org
Additional Resolutions & Image Usage

Bark;
Leslie J. Mehrhoff, University of Connecticut, 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.

U.S. National Parks where reported invasive:
Chesapeake and Ohio Canal National Historical Park (Maryland, Washington, D.C., and West Virginia)
Colonial National Historical Park (Virginia)
George Washington Memorial Parkway (Virginia)
Great Smoky Mountains National Park (North Carolina & Tennessee)
Indiana Dunes National Lakeshore (Indiana)
National Capital Parks East (Washington, D.C.)
Stones River National Battlefield (Tennessee)



Invasive Listing Sources:
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
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
Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
Jil Swearingen, personal communication, 2009-2016
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,
New Jersey Department of Agriculture, Division of Plant Industry, 2004
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.
Tatyana Livschultz, Pennsylvania survey of invasive plants,
Tennessee Exotic Pest Plant Council
Vermont Department of Environmental Conservation
Virginia Invasive Plant Species List