I found this fern today and since it's December here in Maine with a little snow on the ground and 22F, it must be some sort of an Evergreen Fern, but I can't key it out. They are 12-15 inches tall and 3 - 3 1/2 wide. Sori are on the back. The stipe and bottom part of the rachis is brown with a few scales. I don't see any fine hairs. The pinna are 2x cut and they were clustered. The venation is interesting and I thought that would help with ID, but it didn't.
When looking at the Dryopteris images on the Net I think it could be Dryopteris clintoniana https://gobotany.newenglandwild.org/species/dryopteris/clintoniana/ I don't know much about Ferns though, with 250 species of Dryopteris there can probably be more than one that on pictures may look similar to yours.
That definitely looks like my fern and when I change one little detailed I missed, it keys out to D. Clintonia. Thanks for your help Sundrop!
