Charlock

[Sarah]

A cruciferous plant (Brassica sinapistrum) with yellow flowers;wild mustard. It is troublesome in grain fields. Called alsochardock, chardlock, chedlock, and kedlock. Jointed charlock, Whitecharlock, a troublesome weed (Raphanus Raphanistrum) with straw-colored, whitish, or purplish flowers, and jointed pods: wild radish.

[Sarah]

The bits off food that are left over in your dishes when you are camping that you just can't get out because of your lack of proper cleaning supplies.

[Hina Muqadas]

A wild mustard with yellow flowers, which is a common weed of cornfields.