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CCDB → Pteridophytes → Onocleaceae → Matteuccia → Pteretis pensylvanica (Willd.) Fernald
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Pteretis pensylvanica (Willd.) Fernald | Matteuccia struthiopteris (L.) Tod. | 40 ± 1 | Cave1956supp | Britton 1953 |