Boechera gunnisoniana, (Gunnison's Rockcress), is a perennial herb belonging to the Brassicaceae family (the Mustards). It grows on windswept ridges as well as on stoney hillsides in west-central Colorado. The plant has many slender, erect stems which may reach a height of 15 cm. Flowering time is from May to June. According to chromosome counts, this species is diploid (n=7 as in all Boechera species) which probably reproduces sexually.