Caulanthus barnebyi

Caulanthus barnebyi, the Black Rock wild cabbage, is a plant species endemic to a small region in the US State of Nevada. It is known only from the Black Rock Mountains in Humboldt and Pershing Counties in the northwestern part of the state. It grows on dry, rocky slopes and outcrops at elevations of.
Caulanthus barnebyi is a glabrous, perennial herb up to tall. It has basal leaves up to long, plus smaller leaves higher up the stem. Flowers are in a dense raceme, with purple sepals and white petals.