Plant habit near the top of Cascada de Basaseachic, east side of the Sierra Madre Occidentál, Chihuahua, Mexico, 8 Sep 2009. Photographed on a field trip with the American Penstemon Society.
Abaxial leaf surface, showing sori & scales, near the top of Cascada de Basaseachic, 8 Sep 2009.
Desiccated plants on the trail to Cascada de Cusarare, east side of the Sierra Madre Occidentál, Chihuahua, Mexico, 21 Mar 2007.
Adaxial leaf surface on the trail to Cascada de Cusarare, 21 Mar 2007.
Abaxial leaf surface on the trail to Cascada de Cusarare, 21 Mar 2007.