Pellaea intermedia Mett. ex Kuhn
Like Pellaea atropurpurea, this fern typically occurs limestone but can also be found on igneous substrates. This species can sometimes be confused with the diploid form of Pellaea ovata, but the latter has rachises that are glabrous between the pinnae.
Plant habit in the Chisos Mountains, Big Bend National Park, Brewster County, Texas, 31 Dec 2004.
Adaxial surface of a pinna in Dog Canyon on the west side of the Sacramento Mountains, Otero County, New Mexico, 9 Jan 2004.
Abaxial surface of a pinna in Dog Canyon on the west side of the Sacramento Mountains, 9 Jan 2004.
Plant habit along Silver Creek Road north of Silver Creek, west side of the Black Range, Grant County, New Mexico, 3 Sep 2011.
Plant habit along Silver Creek Road, 3 Sep 2011.