Leymus and Cyrtomium, are native to which mutual location?
Cyrtomium Cyrtomium is a genus of about 15-20 species of ferns in the family Dryopteridaceae, native to Asia, Africa (including Madagascar), and the Pacific Ocean islands (Hawaii). It is very closely related to the genus "Polystichum", with recent research suggesting it should be included within it (Little & Barrington).
Elytrigia Elytrigia is a genus of about 20–40 species of grasses, native to temperate regions of the Old World, in Europe, Asia, and northwest Africa. The species are sometimes included in the related genera "Agropyron" or "Elymus", while species in the genera "Pascopyrum" and "Pseudoroegneria" are included in "Elytrigia" by some authors. The genus name has also been spelled Elytrigium.