资料来源 : WordNet®

evergreen wood fern
     n 1: North American evergreen fern having pinnate leaves and
          dense clusters of lance-shaped fronds [syn: {Christmas
          fern}, {canker brake}, {dagger fern}, {Polystichum
          acrostichoides}]
     2: North American fern with evergreen fronds [syn: {marginal
        wood fern}, {leatherleaf wood fern}, {Dryopteris
        marginalis}]