The Botrychiaceae is a family of small, inconspicuous, perennial ferns with five genera, three of which are found in Alberta. This publication begins with an overview of the characteristics of this family, the history of its taxonomy, Botrychiaceae habitats in Alberta & priorities for conservation, the life history of the Botrychiaceae, and fossils of the Botrychiaceae discovered in Alberta. The main section presents an identification key & descriptions of 19 Botrychiaceae found in Alberta. The descriptions include information on habitat, geographic distribution, rarity status, and chromosome number if known.