Brassicaceae: Mustard Family — Mustards
Mustards can be very confusing at first sight but, with a little perseverance, most of them can be readily distinguished. Leaves are one important feature, these vary a great deal from one species to another. Fruits are the other, some are cylindric, others tapered towards the tip, some are appressed to the stem, others are spreading and either ascending (upwards-curving) or reflexed (down-curving). All of the fruits are “dehiscent” meaning that they split longitudinally down a seam. The fruits of Brassica and Hirschfeldia are segmented with a clearly defined terminal segment. Sisymbrium fruits are not segmented.