Adiantum tenerum vs maidenhair

Adiantum tenerum and maidenhair both are nouns.

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

As nouns, maidenhair is a hypernym of Adiantum tenerum; that is, maidenhair is a word with a broader meaning than Adiantum tenerum:

Adiantum tenerum: tropical American fern with broad pinnae; widely cultivated
maidenhair: any of various small to large terrestrial ferns of the genus Adiantum having delicate palmately branched fronds

Other hypernyms of Adiantum tenerum include maidenhair fern.

Adiantum tenerum (noun)	maidenhair (noun)
tropical American fern with broad pinnae; widely cultivated	any of various small to large terrestrial ferns of the genus Adiantum having delicate palmately branched fronds