Family: Dryopteridaceae
[Aspidium spinulosum var. americanum (O.F.Müll.) Sw., more...]
Sue R. Crispin
Emmet J. Judziewicz
Etymology: Dryopteris: from 2 Greek words drys, "oak," and pteris, "fern," possibly referring to the plant's habitat
Plants: perennial fern
Conservation Status: Special Concern
Plants: perennial fern
Conservation Status: Special Concern
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 8, Wetland Indicator = FAC WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin listed species including state and federal status, photos, etc. USDA Plants Database: Federal Distribution and detailed information including photos University of Wisconsin - Green Bay: Fern & Fern Allies: Photos, descriptions, information
Emmet J. Judziewicz
