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Sorghum
See list of 2 species in this genus-
1a. Plants annual or short-lived perennial, lacking rhizomes; leaf blades (5–) 20–100 mm wide; mature spikelets not or only tardily disarticulating
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1b. Plants perennial, with rhizomes; leaf blades 8–20 (–40) mm wide; mature spikelets disarticulating
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Each photo represents one species in this genus.