University of Colorado Herbarium Databases

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  Plantae

    Tracheobionta

      Pteridophyta

            Polypodiopsida

                    Polypodiales

                            Onocleaceae

                                     Matteuccia

                                             Matteuccia pensylvanica

                                             Matteuccia struthiopteris

                                                   [Onoclea struthiopteris]

                                                   [Pteretis nodulosa]

                                               Matteuccia struthiopteris var. pensylvanica

                                                     [Matteuccia pensylvanica]

                                                     [Matteuccia struthiopteris var. pubescens]

                                                     [Onoclea struthiopteris var. pensylvanica]

                                                     [Pteretis pensylvanica]

                                     Pteretis

                                             Pteretis pensylvanica