Etymology: Athyrium: (1) from Greek a, "without," and thurium, "shield" (2) doorless, from the enclosed sori
Plants: perennial fern
Habitat: woods
Conservation Status: Native

- lacy-cut fronds growing in circular clumps

- dark brown scales on the stipe

- fronds twice-pinnate, tapering at both ends, pinnules toothy

- sori linear to j-shaped

Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 5, Wetland Indicator = FAC USDA Plants Database: Federal Distribution and detailed information including photos University of Wisconsin - Green Bay: Fern & Fern Allies: Photos, descriptions, information