A new record of Tripleurospermum Sch. Bip. (Asteraceae) from Iran

Tripleurospermum transcaucasicum (Manden.) Pobed (Asteraceae, Anthemideae) is newly recorded from East Azarbayejan Provice, NW Iran. It is morphologically similar to T. caucasicum (Willd.) Hayek and T. monticolum (Boiss. A.Huet) Bornm. The morphological and anatomical diagnostic characters of new record are compared with closely related species. The geographical distribution of new records and related species in Iran are presented.