Cheilanthes bonariensis

This is a very distinctive Cheilanthes which has been placed in the genus Notholaena in the past.

Plant habit at the bridge over Rio Uriqui south of Cusarare, east side of the Sierra Madre Occidentál, Chihuahua, Mexico, 21 Mar 2007.

Abaxial view of sporing pinnae at the bridge over Rio Uriqui, 21 Mar 2007.

Abaxial view of very sparingly sporing pinnae at the bridge over Rio Uriqui, 21 Mar 2007.

Plant habit on the trail to Cascada de Cusarare, east side of the Sierra Madre Occidentál, Chihuahua, Mexico, 21 Mar 2007.

Adaxial view of pinnae on the trail to Cascada de Cusarare, 21 Mar 2007.

Plant habit at La Cueva on the west side of the Organ Mountains, Doña Ana County, New Mexico, 28 Aug 2004.

Adaxial leaf surface at La Cueva, 28 Aug 2004.

Abaxial view of a pinna at La Cueva, 28 Aug 2004.