Abstract: The classification of the Papaver species from North-east China wasrevised. The concept of classificatory features of the basic form of thespecies, P. nudicaule L., was expanded-sensu ampl., including those planstswho have yellow, pale-yellow and orange flowers. The concept of the sup-species, P. nudicaule L. subsp. amurense N. Busch., was narrowed-sensustr., only refering to the plants with white flower and glabrous fruit.Those plants who have orange flower were classified into the subsp. nudi-caule. Two new varieties of the species were described, var. glabricarpum and subsp. amurense N. Busch. var. seticarpum. The new key to the genusspecies from North-east China was made.