Oxyria is a genus of plants in the family Polygonaceae with three accepted species as of March 2019[update].

Species of Oxyria are perennial herbaceous plants or weakly shrubby.

The inflorescences are terminal, paniclelike or racemelike, borne on stems (pedunculate).

Individual flowers are either bisexual or unisexual, with four greenish to reddish brown tepals.

[5] Oxyria Rumex Rheum As of March 2019[update], Plants of the World Online accepted the following species:[1]