Cardamine maxima is a species of flowering plant in the mustard family Brassicaceae.

[4][5] The American botanist Alphonso Wood placed Dentaria maxima Nutt.

[11] All members of the alliance were previously placed in genus Dentaria Tourn.

Its range extends north to New Brunswick and Québec, south to Pennsylvania and New Jersey, and west to Ontario and Wisconsin.

[14] The global conservation status of Cardamine maxima is secure (G5).