Mustard Family April 7, 2005 The "Cress" plants are in the same family as mustard, cabbage, broccoli, and radishes. They are considered "cruciferous," meaning they have 4 petals arranged like a cross. Rapeseed oil can be made from the seeds of this plant. I found these flowers blooming along the road in Claxton, TN, just down the road from Oak Ridge. Plants in the Brassica species are harmful to cattle, pigs and sheep if eaten. Winter Annual Where seen:Oak Ridge, Great Smoky Mountains NP, widespread {Formerly known as: Brassica campestris}
close-up Notice the notched rayflowers (petals).
