blue toadflax vs Linaria canadensis

blue toadflax and Linaria canadensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
blue toadflax	Yes	No	No	No
Linaria canadensis	Yes	No	No	No

As nouns, blue toadflax and Linaria canadensis are synonyms defined as:

blue toadflax and Linaria canadensis: North American plant having racemes of blue-violet flowers

Other synonyms of blue toadflax include old-field toadflax.

blue toadflax (noun)	Linaria canadensis (noun)
North American plant having racemes of blue-violet flowers	North American plant having racemes of blue-violet flowers