silver oak vs Grevillela parallela

silver oak and Grevillela parallela both are nouns.

Word	Noun	Adjective	Verb	Adverb
silver oak	Yes	No	No	No
Grevillela parallela	Yes	No	No	No

As nouns, silver oak and Grevillela parallela are synonyms defined as:

silver oak and Grevillela parallela: small slender tree with usually entire grey-green pendulous leaves and white or cream-colored flowers; northern Australia

silver oak (noun)	Grevillela parallela (noun)
small slender tree with usually entire grey-green pendulous leaves and white or cream-colored flowers; northern Australia	small slender tree with usually entire grey-green pendulous leaves and white or cream-colored flowers; northern Australia