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CCDB → Pteridophytes → Dryopteridaceae → Dryopteris → Dryopteris spinulosa var. intermedia (Muhl.) Underw.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Dryopteris spinulosa var. intermedia (Muhl.) Underw. | Dryopteris intermedia (Muhl.) A. Gray | 82 ± 1 | Cave1956supp | Britton 1953 |