cypress spurge vs spurge

cypress spurge and spurge both are nouns.

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

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

cypress spurge: Old World perennial having foliage resembling cypress; naturalized as a weed in the United States
spurge: any of numerous plants of the genus Euphorbia; usually having milky often poisonous juice

cypress spurge (noun)	spurge (noun)
Old World perennial having foliage resembling cypress; naturalized as a weed in the United States	any of numerous plants of the genus Euphorbia; usually having milky often poisonous juice