About Pellaea bridgesii Hook.
Pellaea bridgesii Hook. is a fern species, commonly called Bridges' cliffbrake. This fern is native to a region in the western United States, stretching from northern California to Idaho. It grows on rocky granitic cliffs and slopes. The species grows from a branching brown rhizome. Each individual leaf reaches up to 30 to 35 centimeters in length. Each leaf is structured around a straight brown rachis, lined with widely spaced, leathery blue-green leaflets. These leaflets are shaped round to oval, and sometimes folded over. The edges of the leaflets are not rolled under, and do not cover the sporangia located on the undersides of the leaflets.
