yellow pitcher plant vs huntsman's horns

yellow pitcher plant and huntsman's horns both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellow pitcher plant	Yes	No	No	No
huntsman's horns	Yes	No	No	No

As nouns, yellow pitcher plant and huntsman's horns are synonyms defined as:

yellow pitcher plant and huntsman's horns: pitcher plant of southeastern United States having erect yellow trumpet-shaped pitchers with wide mouths and erect lids

Other synonyms of yellow pitcher plant include huntsman's horn, Sarracenia flava, trumpets, yellow trumpet.

yellow pitcher plant (noun)	huntsman's horns (noun)
pitcher plant of southeastern United States having erect yellow trumpet-shaped pitchers with wide mouths and erect lids	pitcher plant of southeastern United States having erect yellow trumpet-shaped pitchers with wide mouths and erect lids