tropical American fern with brown scaly rhizomes cultivated for its large deeply lobed deep bluish-green fronds; sometimes placed in genus Polypodium.

• 热带美洲蕨类植物，有褐色的有鳞的根茎，由于它的大的深深的浅裂的深蓝灰色的叶子而被载植；有时被放置在p种类。