Indian's dream, aspidote touffue

Onychium densum Brackenridge in Wilkes, U.S. Expl. Exped. 16: 120, plate 13, fig. 2. 1854, 1855; Cheilanthes siliquosa Maxon; Pellaea densa (Brackenridge) Hooker

Leaves monomorphic or often somewhat dimorphic, 8--25 cm; fertile leaves more erect than sterile leaves, long-petioled, petioles often 2--5 times longer than blades, fertile blades with more ascending pinnae and narrower segments than sterile blades. Blade 3--4-pinnate, 2--10 cm, somewhat leathery. Ultimate segments linear, 3--8 mm; midrib prominent abaxially. Sori of mature blades continuous along length of segments except at apex; indusia linear, margins with 10--35, shallow, regular teeth or erose. 2 n = 60.

Slopes, crevices, rocky outcrops, often on serpentine, sometimes in chaparral; 300--3400 m; B.C., Que.; Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.