| Cystopteridaceae | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Pteridophyta |
| Class: | Polypodiopsida/Pteridopsida (disputed) |
| Order: | Polypodiales |
| (unranked): | Eupolypods II |
| Family: | Cystopteridaceae (Payer) Schmakov |
| Genera | |
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Based on recent cladistic evidence, Cystopteridaceae should be construed as a separate family due to its basal position, sister to all other polypodioid ferns. This clade includes only the genera Acystopteris, Cystopteris and Gymnocarpium. Woodsia is a more advanced species.
The ferns in this family generally have thin laminae, and small, round, naked sori.