Boechera breweri is a perennial herb growing from a woody, branching caudex. It produces hairy, erect stems to up to about 20 centimeters tall. There is a basal clump of leaves around the caudex. They are oval-shaped and up to 3 centimeters long. They are coated in forked hairs. There are also a few leaves farther up the plant with bases that clasp the stem.
