Hoary CressCardaria draba
BACKGROUND: This plant originated in Europe. It reproduces by root segments and seed. It is commonly found on disturbed sites along road ways, field edges, and excavations. It is also a widespread weed of grain fields, cultivated fields, meadows and grows particularly well on somewhat salinic soils.
Other common names: Small whitetop, whitetop
DESCRIPTION: Hoary cress is a perennial plant commonly one to two feet tall with creeping rootstocks. Leaves are finely toothed. Upper leaves clasp the stem. Bloom is in late spring with clusters of white flowers, each flower containing four petals. Seed pods are heart shaped and contain two brownish seeds.
CONTROL: Biocontrol research is in the early stages. Select herbicides can offer fair to good control when applied from rosette to early bloom stages. Contact your local state or county weed specialist for specific updated information.