Plagiochila porelloides

Stotler and Crandall-Stotler (2017) here expand the concept of Plagiochila porelloides to include P. arctica var. subarctica (= P. porelloides var. subarctica) as a variety. Stotler and Crandall-Stotler (2017) state that "almost all of the reports of Plagiochila asplenioides in North America should be referred to P. porelloides, which is the most common species in eastern North America." Per Stotler and Crandall-Stotler (2017) Plagiochila porelloides is "found from Alaska south to Montana, Colorado, California, Arizona, and New Mexico, and throughout all of eastern North America from Greenland south to the Gulf Coastal Plain and west to Minnesota, Missouri, and Arkansas. It is widespread in boreal Europe and also in northern China."

This species is found from Alaska south to Montana, Colorado, California, Arizona, and New Mexico, and throughout all of eastern North America from Greenland south to the Gulf Coastal Plain and west to Minnesota, Missouri, and Arkansas. It is widespread in boreal Europe and also in northern China (Stotler and Crandall-Stotler 2017).