Right Answer:
You can tell this is Bitter Wintercress by
the characteristic yellow flowers.
Bitter Wintercress is a close relative to wild mustard. It is hard to distinguish between the
two. A way of distinguishing
between the two is the outline of the seed of Bitter Wintercress cannot be
seen through the pod whereas the seed outline is visible through the pod of
Wild mustard. The lower leaves of Bitter Wintercress are lobed and the seed of
this plant
is a dull, tannish to light brown color with a rough seed coat.