Sorghum (weeds)
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Sorghum (weeds) Moench, 1794
This genus of grasses currently contains around 25 species. The cultivated form of Sorghum bicolor (sorghum) is an important crop in Africa and some other regions. Several other species and some subspecies of S. bicolor are important weeds, e.g. Johnsongrass, Sorghum halepense.
The weedy species grow up to a height of 2 m and can form toxins under certain conditions which are then poisonous to livestock. The plants form rhizomes. The panicles are 10-50 cm long and usually become dark reddish when mature. The spikelets are typically arranged in groups of three, consisting of 1 sessile and 2 pedicellate spikelets. The pedicellate spikelets are sterile or staminate.
Currently, the following species have been entered into the system:
