joewood vs shrub

joewood and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
joewood	Yes	No	No	No
shrub	Yes	No	No	No

As nouns, shrub is a hypernym of joewood; that is, shrub is a word with a broader meaning than joewood:

joewood: West Indian shrub or small tree having leathery saponaceous leaves and extremely hard wood
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of joewood include bush.

joewood (noun)	shrub (noun)
West Indian shrub or small tree having leathery saponaceous leaves and extremely hard wood	a low woody perennial plant usually having several major stems