Christmas star vs lobster plant

Christmas star and lobster plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
Christmas star	Yes	No	No	No
lobster plant	Yes	No	No	No

As nouns, Christmas star and lobster plant are synonyms defined as:

Christmas star and lobster plant: tropical American plant having poisonous milk and showy tapering usually scarlet petallike leaves surrounding small yellow flowers

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

Christmas star (noun)	lobster plant (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