Rosa laxa is a species of flowering plant in the family Rosaceae. It is native to western Siberia, the Altai, Kazakhstan, Kyrgyzstan, Mongolia, and northern China. A shrub reaching , it is typically found in a variety of wetter habitats; Populus woodlands, scrublands, meadows, valleys, and riversides at elevations from .

Subtaxa The following varieties are currently accepted: Rosa laxa var. laxa – entire range Rosa laxa var. mollis – northern Xinjiang

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