In this study, the ecological properties of Pinus nigra ARN. ssp. pallasiana (LAM.) HOLMBOE var. seneriana (SAATCIOGLU) YALTIRIK, one of the endemic plants in Turkey, has been studied. To determine the biological characters, needle, cone and seed morphology of the plant were used as main characters. Bioclimate, soil, dead layer characters and floristic composition of the distribution area were used to determine the ecological characters.