spurge vs shrub

spurge and shrub both are nouns.

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

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

spurge: any of numerous plants of the genus Euphorbia; usually having milky often poisonous juice
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of spurge include bush.

spurge (noun)	shrub (noun)
any of numerous plants of the genus Euphorbia; usually having milky often poisonous juice	a low woody perennial plant usually having several major stems