Description as for genus. Can grow in cool areas.

An invasive, spreading fern with the potential to become an environmental weed but sensitive to frosts and deciduous in cool climates.

Recognition: Irregular wavy-edged sterile frond divisions; strongly reduced, spike-like fertile fronds.

EN America, E Asia.

Created by: Val Stajsic

Updated by: Val Stajsic, May 2018