braun's holly fern: North American fern whose more or less evergreen leathery fronds are covered with pale brown chafflike scales
holly fern: any of various ferns of the genus Polystichum having fronds with texture and gloss like holly
reciprocal inhibition: a method of behavior therapy based on the inhibition of one response by the occurrence of another response that is mutually incompatible with it; a relaxation response might be conditioned to a stimulus that previously evoked anxiety