JUSSICA, in botany: A genus of the monogynia order, belonging to the decandria class of plants; and in the natural method ranking under the 17th order, Calycanthæa. The calyx is quadripartite or quinquepartite superior; there are four or five petals; the capsule quadriocular or quinquelocular, oblong, opening at the angles; the seeds are numerous and small.