- Lygodium japonicum 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.
- This plant does not produce flowers.
- Fertile fronds bear sporangia that produce tiny, wind-dispersed spores. Plants are also spread by rhizomes.
- Ecological Threat
- Lygodium japonicum 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. This plant is native to eastern Asia and was first introduced into the United States during the 1930s for ornamental purposes.
- Images, Video and Information - University of Florida - Center for Aquatic and Invasive Plants
- Nonnative Invasive Plants of Southern Forests - USDA Forest Service
- Identification and Biology of Non-Native Plants in Florida's Natural Areas - University of Florida
- Invasive Species Management Plans for Florida - University of Florida - Center for Aquatic and Invasive Plants
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EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org
Invasive Listing Sources
- Alabama Invasive Plant Council
- Alabama Noxious Weeds - Class B Noxious Weed
- Alachua County Cogongrass Initiative
- Apalachicola Invasive Working Group
- Archbold Biological Station
- East Central Florida CISMA
- Faith Campbell, 1998
- Florida Exotic Pest Plant Council - Category I
- Florida Noxious Weeds
- Georgia Exotic Pest Plant Council - Category 1
- John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- South Carolina Exotic Pest Plant Council - Severe Threat
- Tennessee Exotic Pest Plant Council
- Treasure Coast Cooperative Invasive Species Mgmt. Area - EARLY DRAFT
- WeedUS - Database of Plants Invading Natural Areas in the United States
|Common Name Reference:|| USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|
|Scientific Name Reference:||USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|