deccan hemp vs hemp

deccan hemp and hemp both are nouns.

Word	Noun	Adjective	Verb	Adverb
deccan hemp	Yes	No	No	No
hemp	Yes	No	No	No

As nouns, hemp is a hypernym of deccan hemp; that is, hemp is a word with a broader meaning than deccan hemp:

deccan hemp (noun)	hemp (noun)
valuable fiber plant of East Indies now widespread in cultivation	a rope that is used by a hangman to execute persons who have been condemned to death by hanging
fiber from an East Indian plant Hibiscus cannabinus	any plant of the genus Cannabis; a coarse bushy annual with palmate leaves and clusters of small green flowers; yields tough fibers and narcotic drugs
	a plant fiber