Lucas Land
Shale Barren Rockcress
Arabis serotina
Shale Barren rock cress is an erect flowering biennial or facultative biennial herb characterized by an inconspicuous basal rosette of lobed leaves. In its reproductive stage, the basal leaves shrivel as the slender stem grows, or "bolts", and the inflorescence develops. Mature plants are 41 to 97 cm. tall. This is one of the most restricted shale barren endemics, is known from only 60 populations totaling fewer than 1000 individuals. It was listed as a Federally Endangered Species on August 8, 1989.
