All of the internal literatures which record Paeonia obovata Maxim.,so called, native to the Northeast, described it's flower is red or white.The present paper, dealing with the studies of morphology, anatomy,cytology,geograbhical distribution and developmental rhythm of the peony,comfirms that the red flower type is the real Paeonia obovata Maxim. withmorphological features: red petals;light-green filaments, less number ofstaments; grass-green leavies rising up, and the white type is the Paeoniajaponica Mi...