trout lily vs yellow adder's tongue

trout lily and yellow adder's tongue both are nouns.

Word	Noun	Adjective	Verb	Adverb
trout lily	Yes	No	No	No
yellow adder's tongue	Yes	No	No	No

As nouns, trout lily and yellow adder's tongue are synonyms defined as:

trout lily and yellow adder's tongue: eastern North American dogtooth having solitary yellow flowers marked with brown or purple and spotted interiors

Other synonyms of trout lily include amberbell, Erythronium americanum.

trout lily (noun)	yellow adder's tongue (noun)
eastern North American dogtooth having solitary yellow flowers marked with brown or purple and spotted interiors	eastern North American dogtooth having solitary yellow flowers marked with brown or purple and spotted interiors