Plants annual or weakly biennial. Culms to 4 m, slender to stout.
Rames readily disarticulating at maturity, with 1-5 nodes. Sessile
spikelets 5-8 mm, lanceolate to elliptic. Caryopses not exposed at
maturity.
Sorghum bicolor subsp. arundinaceum is native to, and most common,
in Africa, but some strains have been introduced into the Western Hemisphere.