sorghum syrup is actually a juice extract collected from a tall grass called sweet sorghum.
Whiskey and vodka are also loosely classified as such, but the base of baijiu is sorghum.
sorghum juice can be extracted for fermentation and distillation without damaging the grain at the top of the stalk.
"Indian millet," 1590s, from Modern Latin Sorghum, the genus name, from Italian sorgo "a tall cereal grass," probably from Medieval Latin surgum, suricum (12c.), perhaps a variant of Latin syricum "Syrian," as in Syricum (gramen) "(grass) of Syria," from Syria, a possible source of the plant or its grain in ancient times.