The chamomile species of Anthemis triumfettii (L.) All is one of important medicinal plant belong to Compositae family and it grows as wild species in Zagros and Alborz Mountains, Iran. The aim of this study was to evaluation of morphological and phenological traits and their relationships with essential oil. Seeds of seven accessions were sown in jiffy pots and transferred to field using randomize block design with three replications in Alborz research station, Karaj, Iran during 2011-12. Data were collected and analyzed for canopy diameter, plant height, flower number, flowering date, maturity date, shoot fresh and dry weight, Essential oil percentage and GDD to flowering and maturity dates. Results showed significance differences for all traits (
