Definition that contains pinnae
- brittle maidenhair tropical American fern with broad pinnae; widely cultivated
- osmunda clatonia North American fern having tall erect pinnate fronds and a few sporogenous pinnae at or near the center of the fertile fronds
- brittle maidenhair fern tropical American fern with broad pinnae; widely cultivated
- rasp fern any fern of the genus Doodia having pinnate fronds with sharply dentate pinnae
- doodia any fern of the genus Doodia having pinnate fronds with sharply dentate pinnae
- adiantum tenerum tropical American fern with broad pinnae; widely cultivated
- interrupted fern North American fern having tall erect pinnate fronds and a few sporogenous pinnae at or near the center of the fertile fronds