Alternative combination: Asplenium occidentale
Belongs to Osmunda according to R.W. Brown 1940
See also Knowlton 1919
Sister taxa: Osmunda adiantifolia, Osmunda arctica, Osmunda bipinnata, Osmunda cervina, Osmunda cinnamomea, Osmunda claytoniana, Osmunda delawarensis, Osmunda dicksonioides, Osmunda doroschkiana, Osmunda filiculafolia, Osmunda greenlandica, Osmunda heerii, Osmunda hirsuta, Osmunda hirta, Osmunda hollicki, Osmunda lignita, Osmunda lunaria, Osmunda macrophylla, Osmunda montanensis, Osmunda novaecaesarae, Osmunda obergiana, Osmunda phyllitidis, Osmunda regalis, Osmunda spectabilis, Osmunda sphenopteroides, Osmunda spicant, Osmunda struthiopteris, Osmunda verticillata, Osmunda virginiana, Osmunda zeylanica
Distribution:
• Oligocene to Eocene of United States (1: Oregon collection)
• Oligocene of United States (1: Idaho)
• Cretaceous of United States (6: Wyoming)
Total: 8 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.