brittle maidenhair vs Adiantum tenerum

brittle maidenhair and Adiantum tenerum both are nouns.

Word	Noun	Adjective	Verb	Adverb
brittle maidenhair	Yes	No	No	No
Adiantum tenerum	Yes	No	No	No

As nouns, brittle maidenhair and Adiantum tenerum are synonyms defined as:

brittle maidenhair and Adiantum tenerum: tropical American fern with broad pinnae; widely cultivated

Other synonyms of brittle maidenhair include brittle maidenhair fern.

brittle maidenhair (noun)	Adiantum tenerum (noun)
tropical American fern with broad pinnae; widely cultivated	tropical American fern with broad pinnae; widely cultivated