joint fir vs mahuang

joint fir and mahuang both are nouns.

Word	Noun	Adjective	Verb	Adverb
joint fir	Yes	No	No	No
mahuang	Yes	No	No	No

As nouns, mahuang is a hyponym of joint fir; that is, mahuang is a word with a more specific, narrower meaning than joint fir:

joint fir: jointed and nearly leafless desert shrub having reduced scalelike leaves and reddish fleshy seeds
mahuang: Chinese ephedra yielding ephedrine

Other hyponyms of joint fir include Ephedra sinica.

joint fir (noun)	mahuang (noun)
jointed and nearly leafless desert shrub having reduced scalelike leaves and reddish fleshy seeds	Chinese ephedra yielding ephedrine