Euphorbia pulcherrima vs spurge

Euphorbia pulcherrima and spurge both are nouns.

Word	Noun	Adjective	Verb	Adverb
Euphorbia pulcherrima	Yes	No	No	No
spurge	Yes	No	No	No

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

Euphorbia pulcherrima: tropical American plant having poisonous milk and showy tapering usually scarlet petallike leaves surrounding small yellow flowers
spurge: any of numerous plants of the genus Euphorbia; usually having milky often poisonous juice

Euphorbia pulcherrima (noun)	spurge (noun)
tropical American plant having poisonous milk and showy tapering usually scarlet petallike leaves surrounding small yellow flowers	any of numerous plants of the genus Euphorbia; usually having milky often poisonous juice