[2] Physaria ludoviciana is a taprooted perennial, growing 6-16 inches tall.

The two loculed fruits are a globe-like silicle with dense pilose hairs.

[5] In all three states this species is outside of its main range which is more western, growing in the dry plains.

[6] The Minnesota populations are found around Red Wing in Goodhue County;[7] they are 500 kilometers from the species main range in the west and it is speculated it was introduction there by the long-range dispersal of a single seed or they are remnants from when the environment was drier and the species had a greater natural range.

[6] The Minnesota plants are found in dry prairie on south-facing bluffs in sandy soil originating from weathered limestone; the populations are threatened by the encroachment of woody and invasive species due to human suppression of fires.