asparagus fern vs Asparagus plumosus

asparagus fern and Asparagus plumosus both are nouns.

Word	Noun	Adjective	Verb	Adverb
asparagus fern	Yes	No	No	No
Asparagus plumosus	Yes	No	No	No

As nouns, asparagus fern and Asparagus plumosus are synonyms defined as:

asparagus fern and Asparagus plumosus: a fernlike plant native to South Africa

Other synonyms of asparagus fern include Asparagus setaceous.

asparagus fern (noun)	Asparagus plumosus (noun)
a fernlike plant native to South Africa	a fernlike plant native to South Africa