Synonyms: Pirola rotundifolia (pro parte); Pyrola conferta (heterotypic); Pyrola declinata; Pyrola groenlandica; Pyrola magna (homotypic); Pyrola major; Pyrola ovalifolia; Pyrola pumila (homotypic); Pyrola rotundifolia f. microphylla; Pyrola rotundifolia f. orbiculata; Pyrola rotundifolia f. orthostyla; Pyrola rotundifolia f. ovalifolia; Pyrola rotundifolia f. transsilvanica; Pyrola rotundifolia var. albiflora (heterotypic); Pyrola rotundifolia var. microphylla; Pyrola rotundifolia var. orbiculata; Pyrola rotundifolia var. ovalifolia; Pyrola rotundifolia var. pulchella; Pyrola rotundifolia var. transsilvanica; Pyrola serotina; Pyrola tianschanica; Thelaia bracteosa; Thelaia grandiflora (homotypic); Thelaia rotundifolia (homotypic)