Onoclea struthiopteris var. pensylvanica (Willdenow) B. Boivin

Onoclea struthiopteris var. pensylvanica (Willdenow) B. Boivin is a synonym sensu Hassler, 2014-2024+ of:

Matteuccia pensylvanica (Willdenow) Raymond, an accepted species name sensu Hassler, 2014-2024+.