Piper vs ashanti pepper

Piper and ashanti pepper both are nouns.

Word	Noun	Adjective	Verb	Adverb
Piper	Yes	No	No	No
ashanti pepper	Yes	No	No	No

As nouns, ashanti pepper is a hyponym of Piper; that is, ashanti pepper is a word with a more specific, narrower meaning than Piper:

Piper: type genus of the Piperaceae: large genus of chiefly climbing tropical shrubs
ashanti pepper: spice derived from the dried fruit of Piper guineense; very similar to cubeb pepper but is much less bitter and has a fresher more herbaceous flavour.

Piper (noun)	ashanti pepper (noun)
type genus of the Piperaceae: large genus of chiefly climbing tropical shrubs	spice derived from the dried fruit of Piper guineense; very similar to cubeb pepper but is much less bitter and has a fresher more herbaceous flavour.