Multifida means divided many times.
Rhizome: short-creeping, densely scaly, scales dark reddish brown to chestnut brown.
Frond: 60 cm high by 25 cm wide, deciduous in colder areas, dimorphic, the sterile fronds leafier, blade/stipe ratio: 2:1.
Stipe: dark brown to straw-colored at the base, sparsely scaly at base, glabrous above, vascular bundles: 1.
Blade: 1-pinnate, irregularly ovate, papery, bright green, glabrous.
Pinnae: 3 to 7 pair, linear, lower pinnae pinnate, upper simple, adnate to the winged rachis, fertile pinnae contracted; margins fertile entire, sterile serrate; veins conspicuous, free, simple or once-forked.
Sori: continuous, submarginal, indusium: false, reflexed margin of pinnae stiff, pale brown, sporangia: yellowish brown.
Habitat: terrestrial or on rock in disturbed areas in circumneutral soils.
Distribution: Japan, Korea, China, Vietnam, widely naturalized elsewhere.
Hardy to -10°C, USDA Zone 7.
Differs from Pteris cretica particularly in having a winged rachis. Young plants can appear to be P. cretica.
Pycnodoria multifida (Poiret) Small
Illustration by Edgar Paulton, from How to Know the Ferns and Fern Allies, John T. Mickel, © 1979 Wm. C. Brown Co.