Sorghum referring to a grain related to millet. This grain is widely grown in agriculturally marginal areas, from China to Yemen to Turkmenistan, because it can survive with little water and in extreme heat.
See also:
"Sorghum" is in the UNSPSC Code "10151611"
Sorghum seeds
"Sorghum" is in the NAICS Code "111199"
All Other Grain Farming
Sorghum farming