Found these plants in the Granite Dells of Arizona. This is from a damp, south-facing but sheltered crevice in granite. The large stem in the photo is a young Copper fern, not sure what the other small plant species is/are. The one in center is reminiscent of a maidenhair fern, but I am unsure. There are a variety of lipferns and cliffbrakes around the crevice as well.

Perhaps a type of spleenwort fern.

Hamwild said:Perhaps a type of spleenwort fern.

I couldn't find a match on the USDA database, but spleenwort is a good possibility

It reminds me of Southern Maidenhair Fern (Adiantum capillus-veneris)

Thanks! Southern maidenhair looks right.