tiger lily vs Lilium lancifolium

tiger lily and Lilium lancifolium both are nouns.

Word	Noun	Adjective	Verb	Adverb
tiger lily	Yes	No	No	No
Lilium lancifolium	Yes	No	No	No

As nouns, tiger lily and Lilium lancifolium are synonyms defined as:

tiger lily and Lilium lancifolium: east Asian perennial having large reddish-orange black-spotted flowers with reflexed petals

Other synonyms of tiger lily include devil lily, kentan.

tiger lily (noun)	Lilium lancifolium (noun)
lily of southeastern United States having cup-shaped flowers with deep yellow to scarlet recurved petals	east Asian perennial having large reddish-orange black-spotted flowers with reflexed petals
east Asian perennial having large reddish-orange black-spotted flowers with reflexed petals