wartwort vs spurge

wartwort and spurge both are nouns.

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

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

wartwort: not unattractive European weed whose flowers turn toward the sun
spurge: any of numerous plants of the genus Euphorbia; usually having milky often poisonous juice

wartwort (noun)	spurge (noun)
not unattractive European weed whose flowers turn toward the sun	any of numerous plants of the genus Euphorbia; usually having milky often poisonous juice