Leaf blades broadly deltate-ovate, 4--5-pinnate, with proximal pinnae at least 1/2 as long as blades. n = 2 n = 81, apogamous.

Sporulating summer--fall. Rocky slopes and cliffs, usually on calcareous or volcanic substrates; 800--2300 m; Ariz., Calif., N.Mex., Utah; Mexico in Chihuahua, Sonora.