Erythronium montanum vs avalanche lily

Erythronium montanum and avalanche lily both are nouns.

Word	Noun	Adjective	Verb	Adverb
Erythronium montanum	Yes	No	No	No
avalanche lily	Yes	No	No	No

As nouns, Erythronium montanum and avalanche lily are synonyms defined as:

Erythronium montanum and avalanche lily: perennial herb having large white flowers marked with orange; found near the snow line in the northwestern United States

Erythronium montanum (noun)	avalanche lily (noun)
perennial herb having large white flowers marked with orange; found near the snow line in the northwestern United States	perennial herb having large white flowers marked with orange; found near the snow line in the northwestern United States