Vegetative growth. Key characteristics: stems are reddish-brown and leaves are lanceolate with irregular teeth along the margins.
Flower. Small, white and produced in the terminals and leaf axils.
Seed. Seed are tooth-shaped with a warty texture. A fine row of short hairs is present on the widest terminal. Length is 2.0 to 2.5 mm.
Life cycle: summer annual.