There are at least 10 members of the Birch, Alder, and Oak order: Fagales found in Montana.[1] Some of these species have been designated as Species of Concern.[2]
^ Species of Concern are native taxa that are at-risk due to declining population trends, threats to their habitats, restricted distribution, and/or other factors. Designation as a Montana Species of Concern or Potential Species of Concern is based on the Montana Status Rank, and is not a statutory or regulatory classification. Rather, these designations provide information that helps resource managers make proactive decisions regarding species conservation and data collection priorities. "Species Status Codes, Species of Concern". Montana Natural Heritage Project. http://fieldguide.mt.gov/statusCodes.aspx#soc. Retrieved 2011-06-17.