Rosettes. Key characteristics: rounded, glossy leaves on long petioles. Left photo courtesy of Dr. Harlan Palm, DuPont Agricultural Products.
Flower. Key characteristics: bright yellow and four-petaled flowers occur in racemes.
Mature seed pods.
Seed. Seed are reddish-brown, oval and have a rough surface. Length is slightly less than 2.0 mm.
Life cycle: variable; winter annual or biennial.