is a Sorghum genus of about 25 species of flowering plants in the grass family ( Poaceae). Some of these species are grown as cereals for human consumption and some in pastures for animals. One species, , was originally domesticated in Sorghum bicolor Africa and has since spread throughout the globe. Seventeen of the 25 species are native to Australia,  with the range of some extending to  Africa, Asia, Mesoamerica, and certain islands in the Indian and Pacific Oceans.  One species is grown for  grain, while many others are used as fodder plants, either cultivated in warm climates worldwide or naturalized in pasture lands.  Sorghum is in the subfamily Panicoideae and the tribe Andropogoneae (the tribe of big bluestem and sugarcane).
Cultivation and uses
, Sorghum bicolor native to Africa with many cultivated forms now,  is an important crop worldwide, used for  food (as grain and in sorghum syrup or "sorghum molasses"), animal fodder, the production of alcoholic beverages, and biofuels. Sorghum's cultivation has been linked by archeological research back to ancient Sudan around 6,000 to 7,000 BP.
All sorghums contain
phenolic acids, and most contain flavonoids. Sorghum grains are one of the highest food sources of the  flavonoid proanthocyanidin. Total  phenol content (in both phenolic acids and flavonoids) is correlated with antioxidant activity. Antioxidant activity is high in sorghums having dark  pericarp and pigmented testa. The antioxidant activity of sorghum may explain the reduced incidence of certain cancers in populations consuming sorghum. 
Popped sorghum is popular as a snack in India. The popped sorghum is similar to
popcorn, but the puffs are smaller. Recipes for popping sorghum by microwave, in a pot, etc., are readily available online.  
In China, sorghum flour is used in combination with wheat flour to make noodles and breads.
Most varieties are
drought- and heat-tolerant, nitrogen-efficient, and are especially important in  arid and semi-arid regions, where the grain is one of the staples for poor and rural people. These varieties form important components of forage in many tropical regions. S. bicolor is an important food crop in Africa, Central America, and South Asia, and is the 5th most important cereal crop grown in the world. 
In the early stages of the plants' growth, some species of sorghum can contain levels of
hydrogen cyanide, hordenine, and nitrates, which are lethal to grazing animals. When stressed by drought or heat, plants can also contain toxic levels of cyanide and nitrates at later stages in growth. 
Role in global economy
Global demand for sorghum increased dramatically between 2013 and 2015, when
China began purchasing US sorghum crops to use as livestock feed as a substitute for domestically grown corn. China purchased around $1 billion worth of American sorghum per year until April 2018, when China imposed retaliatory duties on American sorghum as part of the trade war between the two countries.
Species recorded include:
Sorghum at a West African market
- northwestern Australia Sorghum amplum
- Queensland Sorghum angustum
- Africa, Indian Subcontinent, Madagascar, islands of the western Indian Ocean Sorghum arundinaceum
- cultivated sorghum, often individually called sorghum, also known as durra, jowari, or milo. Native to Sahel region of Africa; naturalized in many places Sorghum bicolor
- Northern Territory of Australia Sorghum brachypodum
- Northern Territory, Western Australia Sorghum bulbosum
- Thailand, Myanmar Sorghum burmahicum
- India Sorghum controversum
- Sahel and West Africa Sorghum × drummondii
- Northern Territory, Western Australia Sorghum ecarinatum
- Northern Territory of Australia Sorghum exstans
- Northern Territory, Queensland Sorghum grande
- Johnson grass - North Africa, islands of eastern Atlantic, southern Asia from Lebanon to Vietnam; naturalized in East Asia, Australia, the Americas Sorghum halepense
- Northern Territory, Western Australia Sorghum interjectum
- Northern Territory, Western Australia Sorghum intrans
- Philippines, Lesser Sunda Islands, Sulawesi, New Guinea, northern Australia Sorghum laxiflorum
- Queensland, New South Wales, Victoria Sorghum leiocladum
- Northern Territory of Australia Sorghum macrospermum
- Northern Territory, Western Australia Sorghum matarankense
- East Asia, Indian Subcontinent, Southeast Asia, New Guinea, Micronesia Sorghum nitidum
- Australia, New Guinea, Indonesia Sorghum plumosum
- China, Indian Subcontinent, Southeast Asia, New Guinea, Christmas Island, Micronesia, Cook Islands Sorghum propinquum
- Sahel from Mali to Tanzania; Yemen, Oman, India Sorghum purpureosericeum
- Northern Territory, Western Australia Sorghum stipoideum
- Lesser Sunda Islands, Maluku, New Guinea, northern Australia Sorghum timorense
- Mexico, Guatemala, Honduras Sorghum trichocladum
- eastern + southern Africa from Ethiopia to Namibia; Oman Sorghum versicolor - dry regions from Senegal to the Levant. Sorghum virgatum
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