Origin
Eastern Asia
Ecological Impact
Listed as a Category I invasive species for all regions of Florida by the Florida Invasive Species Council and listed as a prohibited aquatic plant and Noxious Weed by the Florida Department of Agriculture and Consumer Services. Forms dense canopies that can eliminate underlying vegetation by blocking out sunlight and is considered to be a fire threat to trees. This plant can completely change an entire ecosystem by replacing native fauna and flora. It can be found in shady or sunny damp areas in yards or along the road; as well as on the edges of lakes, creeks, hammocks, and upland woodlands. Spores are spread year round.
Description
A climbing fern that can grow up to 90 feet long with lacey fronds along green to orange to black vines (rachis). Fronds(leaves) are compound and opposite and triangular. Fronds are fingerlike projections around the margins that produce sporangia in two rows under the margins (Miller, Chambliss, and Loewenstein, 2010).
Identification Tips
Look for a green vine that seems to "climb" and has lacey, triangluar fronds. May resemble Old World climbing fern (Lygodium microphyllum) which are not characterized by 5-7 palmately lobed, fingerlike fronds.
History
Introduced to Florida from Japan in 1932 as an ornamental plant (Langeland and Burks, 1998).
Florida Range
Statewide
Prevention/Management Strategies
Do not plant. Monitor and report populations. To prevent distribution of spores, do not drive equipment through the vines.