NC INVASIVE PLANT COUNCIL
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Japanese Honeysuckle

Lonicera japonica

Japanese honeysuckle was bought over as an ornamental but has since spread into natural habitats across the United States. It spreads by rhizomes, runners, and bird-dispersed seeds. The plant forms evergreen mats which shade out native vegetation and climb up small trees and shrubs.

The Japanese honeysuckle can be identified by its fragrant flowers which blossom all summer. These flowers are yellow, white, trumpet-shaped, and occur in pairs. In the fall, they have small black fruits;  the native species of Lonicera have red and orange fruits. The leaves of the Japanese honeysuckle are oblong (1 - 2" long), smooth (older leaves) or lobed (younger leaves) along the edges, and arranged oppositely along the stem. The Japanese honeysuckle also has 2 leaves at the tips of the stem; the native Lonicera species have only one leaf at the tip of the stem. Older stems are hollow and have brown, peeling bark. 

Fact Sheet: Japanese Honeysuckle

Picture
Chuck Bargeron, University of Georgia, Bugwood.org
Picture
Photo Credit:  Chris Moorman
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  • Home
  • About
    • Donate
    • Invasives 101
    • Membership
    • Board of Directors >
      • NC-IPC ByLaws
    • Contact
    • Listserve
  • News
    • Iverson Scholarship
    • Wildland Weeds Magazine
    • Calendar >
      • 2018 Workshop
  • NC Invasive Plants
    • Ailanthus Altissima (Tree-of-Heaven)
    • Elaeagnus umbellata (Autumn Olive)
    • Ficaria verna (Fig Buttercup)
    • Imperata cylindrica (Cogongrass)
    • Ligustrum sinense (Chinese Privet)
    • Ligustrum vulgare (Wild Privet)
    • Lonicera japonica (Japanese Honeysuckle)
    • Microstegium vimineum (Japanese Stilt Grass)
    • Nandina domestica
    • Nymphoides indica (water snowflake)
    • Paulownia tomentosa (Princess Tree)
    • Persicaria perfoliata (Mile-A-Minute Vine)
    • Pueraria montana (Kudzu)
    • Pyrus calleryana (Bradford Pear)
  • Annual Symposiums
    • 2022 Joint Symposium >
      • 2022 Speaker Presentations
    • 2021 Virtual Conference
    • 2019 Joint Symposium >
      • 2019 Presentations
    • 2018 Annual Symposium
    • 2017 Annual Symposium
    • 2016 Annual Symposium >
      • 2016 agenda
    • 2015 Annual Symposium >
      • 2015 Presentations
      • 2015 Agenda
  • Projects
    • Fig Buttercup Project
    • Eno River Hydrilla Project
    • Awareness Week
  • Awards
    • 2015 Student Competition Winners
    • 2015 EIA Award
    • 2014 EIA Award