A revision of Bromus sect. Triniusa (Poaceae) in Khorassan (Iran)

Bromus sect. triniusa is revised in khorassan based on the new taxonomic concepts of bromus danthoniae complex group and a remarkable herbarium material collected from khorassan (kopetdagh, northeastern iran), as the main center of its diversity. bromus turcomanicus, a narrow endemic species in central kopetdagh hitherto known only from the type locality in southern turkmenistan, is newly recorded for the flora of iran. the presence of bromus pseudodanthoniae, a neglected species in flora iranica, is confirmed. an identification key and additional note on taxonomy and biogeography of three-awned bromus species is presented.