Brassicaceae [=Cruciferae] (Mustard) Family
Plant is an upright hairy annual with mostly basal flattened leaves. Preferred habitat is moist ditches, fields and roadsides. Distribution is throughout the Escambia region.
Leaves are four to six inches long; rough to the touch; large teeth; prominent mid-vein and pinched at the tip.
Flowers are confusing as they appear to be those of the mustard rocket group; four white petals surrounding yellow discs. Disc flowers are bisexual; ray flowers are sterile. Flowers occur in the summer.
Fruit is a slender seed pod.
Extracts from the plant were once used to treat finger sores (whitlow), thus the name.