huntsman's horns vs yellow pitcher plant

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

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

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

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

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

huntsman's horns (noun)	yellow pitcher plant (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