Boechera quadrangulensis. (Synonym: Boechera pulchra) (Rockcress)
Brassicaceae (Mustard Family)

Semi-desert, foothills. Woodlands, shrublands, openings. Spring.

This slender, dainty, and lovely (thus the Latin, "pulchra", meaning "beautiful") member of the Mustard Family grows in open, sunny, semi-desert areas of the Four Corners.  The plant is easily passed by because it is so slender.  Flower color of Boechera pulchra varies from nearly white to pink to lavender-purple.  Narrow, light green leaves are mostly basal in tight tufts.

M. E. Jones named this plant Arabis pulchra in 1887 from a specimen he collected in Nevada in 1882.