Euphorbia pulcherrima vs poinsettia

Euphorbia pulcherrima and poinsettia both are nouns.

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

As nouns, Euphorbia pulcherrima and poinsettia are synonyms defined as:

Euphorbia pulcherrima and poinsettia: tropical American plant having poisonous milk and showy tapering usually scarlet petallike leaves surrounding small yellow flowers

Other synonyms of Euphorbia pulcherrima include Christmas flower, Christmas star, lobster plant, Mexican flameleaf, painted leaf.

Euphorbia pulcherrima (noun)	poinsettia (noun)
tropical American plant having poisonous milk and showy tapering usually scarlet petallike leaves surrounding small yellow flowers	tropical American plant having poisonous milk and showy tapering usually scarlet petallike leaves surrounding small yellow flowers