Diplazium sibiricum, otherwise known as the Mole-Ladder is a species of fern. It is found in Siberia, across Russia, in Finland, and in northern Asia. They can be found on elevations between 30m-3000m. References Diplazium sibiricum Hardy Fern Library Diplazium sibiricum (Turcz. ex Kunze) Sa.Kurata Korean Plant Names Index sibiricum Ferns of Asia Ferns of Europe Flora of Siberia Flora of Finland Flora of Korea Flora of Russia Flora of Northeast Asia Plants described in 1961