BRASSICA, or CABBAGE, in botany, a genus of the tetradynamia filiquosa class. The calix is erect and connivent; the seeds are globular; and there is a nectariferous gland between the pistillum and the short stamina, and between the calix and the long stamina. There are ten species of this plant, most of which are excellent pot-herbs, and cultivated in our gardens.