Scientific Name: Lonicera japonica
Common Name(s): Japanese Honeysuckle, and Hall's honeysuckle.
INVASIVE to MAINE Images to come. Final Edit Needed.
Research Summary: Tyler L.
|What were your observations on doing your research. Was it difficult? Were there a lot of resources? What was surprising? What do you think are some of the most important things that you discovered? |
- Covered in soft fine hairs.
- Oblong to oval.
- 1/2 inches long.
- Woody with short stalks.
- Can reach 30 ft to 60 ft in length.
- Young stems are green and round.
- Older stems are purplish brown and smooth.
- White and pink flowers, 1 to 1.5 inches long.
- Lovely but strong honeysuckle smell.
- In the fall it has small black fruit with 2-3 seeds.
- Berries 1/4 inch wide.
Taxonomy of Species
Similar species include:
|| Scientific Classification
|| What That Classification Means|
|| Many celled, don't move, absorb water through roots.|
|| Flowering plants.|
|| A flowering plant that has two leaves, or cotyledons, in the embryo of the |
|| Many flowering plants such as honeysuckle and valerian.|
|| Honeysuckle family.|
|| Lonicera L.
|| Lonicera japonica
|| Japanese Honeysuckle.|
Trumpet or coral honeysuckle, Lonicera dioica.Location and Movement
|Origin/ Native Range
|| Eastern Asia, specifically China, Japan, and Korea.|
- It was introduced to the U.S. in the early 1800's as an ornamental plant and also used for erosion control and ground cover.
- It was introduced to the U.S. on Long Island, New York in 18 62 for cultivation
|Spread of Species
- It is difficult to control because it has few natural enemies.
- It grows rapidly in places with a lot of light such as forest edges, canopy gaps, under sparse, and open forest.
- Vines produce stolens that root into soil and allow spread of species.
- It is spread by people for being used for ornamental purposes and erosion control.
|Where is it now invasive?
|| It is invasive in every U.S. state EXCEPT AK, WA, OR, ID, MT, WY, CO, ND, SD, and MN.|
|Is this species in Maine?
|| Yes |
|Where has it been identified?
- As of 2003, this plant has been reported from only one island location in Maine.
- According to the plants.usda.gov site it has been found in Knox and Cumberland counties.
|How was this species introduced?
|| No information available.|
- Likes full shade and tolerates drought and soggy soils.
- Lives in disturbed habitats, roadsides, trails, fence-rows, abandoned fields, and forest edges.
|Climate and Temperature Range
- USDA hardiness zones 4-10.
- Japanese Honeysuckle is less invasive in arid climates and easier to control.
- It will spread if ignored in humid climates.
- Grows well in areas getting more than 30 inches of rain per year.
- Severe winter temperatures may limit spread of this species in northern latitudes.
|| Primary producer.|
|| Absorbs water and nutrients through it's roots and makes food through photosynthesis.|
|| White tail deer, humming birds, bees, and many kinds of songbirds.|
- Crowds out native species by smothering plants, blocking sunlight and taking most of the nutrients and water found in the ground.
- It also wraps around the stems of other plants so water can't get through.
- Grows vertically and horizontally by climbing up and around any vegetation and will topple upright stems through the sheer weight of accumulated vines.
- It's development impacts the formation of tree trunks.
|| Produces a toxic substance in berries that is harmful only when eaten in large amounts.|
|| It has little to no economic value.|
- Important food item in U.S. to white tail deer.
- The flowers attract humming birds and bees and the fruits are relished by many kinds of songbirds.
|| None known at this time.|
- Hand pulling and prescribed burning.
- Mowing is effective with herbicides.
- Use native alternatives as ornamental plantings.
- To tell nurseries to not grow and plant japanese honeysuckle, but rather use native alternatives.
|| Foliar spray such as glyphosate is only effective when green leaves are present.|
It is one of the most invasive plants in Florida and Tennessee.