Japanese climbing fern

Lygodium japonicum (Thunb. ex Murr.) Sw.

U.S. Nativity: Exotic
Habit: Vine

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.

Identification, Biology, Control and Management Resources

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