The genus Brassica, a member of the Family Cruciferae, contains approximately fifty species, including experimental forms. It is one of the more important genera of the family, and includes such economic plants as cabbage, turnip, kale, rutabaga, cauliflower, broccoli and table mustards. The entire genus is indigenous to the Old World, and many species have been cultivated since very early times.
Proceedings of the Iowa Academy of Science
©1958 Iowa Academy of Science, Inc.
"Morphologic Variation in the Genus Brassica,"
Proceedings of the Iowa Academy of Science, 65(1), 86-95.
Available at: https://scholarworks.uni.edu/pias/vol65/iss1/9