Sudangrass is a tall annual grass. It probably originated in Egypt or Africa. It is believed to be the wild original form of the cultivated sorghums. The two cross readily when planted near each other. Sudangrass is used for feed for stock in a variety of ways and as a late Summer crop. The root system is very good for breaking up the soil and keeping it loose. Sorghum, as we shall see, is used for a variety of purposes.