Notholaena standleyi

This is one of the most common of the cheilanthoid ferns, usually found on igneous substrates.

Plant habit in Bar Canyon, west side of the Organ Mountains, Doña Ana Co., New Mexico, 27 Aug 2008.

Plant habit in King Canyon in the Tucson Mountains, Pima Co., Arizona, 20 Feb 2004.

Plant habit after desiccation on Wind Mountain in the Cornudas Mountains, Otero Co., New Mexico, 19 Mar 2006.

Adaxial leaf surface in Mars Canyon on the west side of the Organ Mountains, Doña Ana Co., New Mexico, 9 Oct 2005.

Abaxial leaf surface on Wind Mountain, 19 Mar 2006.

Abaxial leaf surfaces showing within-site variation at lower Jacobson Canyon, Pinaleño Mountains, Graham Co., Arizona, 6 May 2008. These plants are part of a research project by Carl Rothfels.

Plant habit in the box of Fillmore Canyon, west side of the Organ Mountains, Doña Ana County, 14 Aug 2011.

Adaxial view of a leaf in King Canyon, 20 Feb 2004.

Abaxial view of part of a leaf in King Canyon, 20 Feb 2004.

Plant habit in King Canyon, 20 Feb 2004.