Flower:

Small rounded clusters at the end of stems that elongate as the plant matures. Flowers are about ¼ inch across, with 4 rounded light yellow petals and 6 yellow-tipped stamens in the center.

Leaves and stem:

Leaves are 1 to 3 inches long and to 1 inch wide, deeply divided into narrow rounded lobes that may be further lobed, becoming smaller and less divided as they ascend the stem. Lower leaves are oblong with 5 to 7 pairs of lobes, with lobes sometimes clasping at the base. Typically several stems ascend from the base; stems and the underside of leaves are sparsely to densely covered in short hairs.

Fruit:

Fruit is a slender pod to ½ inch long, straight or upward curved, with the brown stub of the style at the tip (see flower photo above).

Notes:

An infrequent non-weedy native species occurrences are sparse across the south central parts of the state. Spreading Yellow-cress is not likely to be confused with other mustard species growing in Minnesota, as the rounded lobed leaves are fairly unique.