Three new species of Onosma L. (Boraginaceae) from Iran

In this paper, we present some important findings in Onosma sect. Onosma. Data were collected during several surveys in western and northwestern Iran. Three new species were discovered and are illustrared here, namely O. sheidaii sp. nov and O. azarbaidjanensis sp. nov (in subsect. Haplotricha ) and O. mozaffariani sp. nov. (In subsect. Heterotricha ). An extensive review of literature and the comparative study with specimens kept in 14 Asiatic...