| Japanese climbing fern | USDA PLANTS Symbol: LYJA U.S. Nativity: Exotic Habit: Vines Ferns |
| Lygodium japonicum (Thunb. ex Murr.) Sw. |
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Taxonomic Rank: Filicopsida: Polypodiales: Lygodiaceae |
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| Native Range: E. Asia -temp. (BAIL); | |
Japanese climbing fern is a perennial climbing fern that can reach lengths of 90 ft. (30 m). Vines are thin, wiry, green to orange to black and usually die back in the winter. The fronds (leaves of a fern) are opposite, compound, usually triangular in shape, 3-6 in. (8-15 cm) long, 2-3 in. (5-8 cm) wide and finely dissected. Fertile fronds bear sporangia that produce tiny, wind-dispersed spores. Plants are also spread by rhizomes. Japanese climbing fern often invades disturbed areas such as roadsides and ditches, but can also invade natural areas. It generally is scattered throughout the landscape, but can form dense mats that smother understory vegetation, shrubs and trees. Japanese climbing fern is native to eastern Asia and was first introduced into the United States during the 1930s for ornamental purposes. |
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Identification, Biology, Control and Management Resources
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| Selected Images from Invasive.org | View All Images at Invasive.org |
 Infestation; July James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); September James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; July James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Prescribed Fire; Chuck Bargeron, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Dispersal; Plant in a pine straw bale Dennis Teague, U.S. Air Force, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; Chuck Bargeron, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; Infesting a planted pine stand, GA Wayne Williamson, , Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); Vines and Fronds. Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Tift County, GA Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Additional Resolutions & Image Usage |
 Control; Backpack sprayer, glyphosate treatment. Tift County, GA Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Additional Resolutions & Image Usage |
 Foliage; Spore-producing fronds. Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Additional Resolutions & Image Usage |
 Foliage; Fertile fronds Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; Nancy Loewenstein, Auburn University, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); September James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); January James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Ronald F. Billings, Texas Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Chris Evans, Illinois Wildlife Action Plan, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; Chuck Bargeron, University of Georgia, 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 Alternative content
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 State(s) Where Reported invasive. Based on state level agency and organization lists of invasive plants from WeedUS database. Alternative content
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