The taxonomy and geographic distribution of four subspecies of the arctic Siberian taxon Papaver pulvinatum Tolm., viz. subsp. interius, subsp. alexandri V.V. Petrovsky subsp. nova, subsp. tschuktschorum Tolm. subsp. nova, and the autonymous subspecies, are discussed. The name P. pulvinatum subsp. lenaense Tolm. as interpreted in a previous validation proved to be a synonym of P. nudicaule var. riparium V.V. Petrovsky. The plants treated before as subsp. lenaense are described as a new subspecies, P. pulvinatum subsp. alexandri. The name P. pulvinatum subsp. tschuktschorum is validated. The description of P. pulvinatum subsp. interius is augmented and amplified.