The Lady Bird Johnson Wildflower Ctr site is a good reference
http://www.wildflower.org/gall... - used to assist designation.
Google images sometimes helps.
Seemed the toothed edges were deeper in the one I decided on. Several reference sites noted the similarities and name overlaps of the two choices.
When either of these googled, several good fern reference, id sites were presented.
Wikipedia also is helpful at times.
