Stephanomeria malheurensis vs malheur wire lettuce

Stephanomeria malheurensis and malheur wire lettuce both are nouns.

Word	Noun	Adjective	Verb	Adverb
Stephanomeria malheurensis	Yes	No	No	No
malheur wire lettuce	Yes	No	No	No

As nouns, Stephanomeria malheurensis and malheur wire lettuce are synonyms defined as:

Stephanomeria malheurensis and malheur wire lettuce: a small plant of Oregon resembling mustard; a threatened species

Stephanomeria malheurensis (noun)	malheur wire lettuce (noun)
a small plant of Oregon resembling mustard; a threatened species	a small plant of Oregon resembling mustard; a threatened species