sugar sorghum vs sweet sorghum

sugar sorghum and sweet sorghum both are nouns.

Word	Noun	Adjective	Verb	Adverb
sugar sorghum	Yes	No	No	No
sweet sorghum	Yes	No	No	No

As nouns, sugar sorghum and sweet sorghum are synonyms defined as:

sugar sorghum and sweet sorghum: any of several sorghums cultivated as a source of syrup

Other synonyms of sugar sorghum include sorgho, sorgo.

sugar sorghum (noun)	sweet sorghum (noun)
any of several sorghums cultivated as a source of syrup	any of several sorghums cultivated as a source of syrup