Cruciferae - Mustard Family

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Arabis laevigata (Smooth Rockcress)

This plant grown to 40 inches tall.  It is a smooth biennial.  The stem leaves are from 2 to 6 inches long and are narrowly lanceolate, glaucous, sessile, and sometimes clasping.  The basal leaves are toothed.  The flower is greenish-white with 4 white petals to .25" long.  The narrow fruits are up to 4 inches long, and are flat and widely spreading.

Smooth rockcress flowers from April to May.  It is common, and is found in woods and on hillsides.