pyramid plant vs deer's-ears

pyramid plant and deer's-ears both are nouns.

Word	Noun	Adjective	Verb	Adverb
pyramid plant	Yes	No	No	No
deer's-ears	Yes	No	No	No

As nouns, pyramid plant and deer's-ears are synonyms defined as:

pyramid plant and deer's-ears: any of various tall perennial herbs constituting the genus Frasera; widely distributed in warm dry upland areas of California, Oregon, and Washington

Other synonyms of pyramid plant include American columbo, American gentian, columbo, deer's-ear.

pyramid plant (noun)	deer's-ears (noun)
any of various tall perennial herbs constituting the genus Frasera; widely distributed in warm dry upland areas of California, Oregon, and Washington	any of various tall perennial herbs constituting the genus Frasera; widely distributed in warm dry upland areas of California, Oregon, and Washington