Physaria arctica is a perennial flowering herb in the family Brassicaceae, known by the common name arctic bladderpod.

[1] Plants are 6–12 cm high[2] with a short taproot and woody stem-base.

[4] Inflorescences are loosely racemose, with flower stalks ascending or erect and 5–20 mm.

There are 3-8 radially symmetrical flowers per inflorescence,[3] and the petals are spaulate, 5-6mm, with blades that narrow gradually to the claw.

[4] Physaria arctica grows in sand and gravel from calcareous bedrock, river bars and terraces, cliff ledges, scree and talus slopes.