Original identification: Dryopteris arguta
Current identification: Dryopteris arguta
Photographer: Gerald D. Carr
Date Photographed: September 28, 2011
Location: U.S.A., Oregon, Benton County: W side of Oak Creek, off Patterson Rd. at S end of McDonald State Forest, Oregon, USA.
Elevation: 585 ft.
Coordinates: 44.60444° N, 123.33439° W
Phenology: Spores
Comments: The indusium is kidney-shaped in Dryopteris.