pyramid plant vs columbo

pyramid plant and columbo both are nouns.

Word	Noun	Adjective	Verb	Adverb
pyramid plant	Yes	No	No	No
columbo	Yes	No	No	No

As nouns, pyramid plant and columbo are synonyms defined as:

pyramid plant and columbo: 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, deer's-ear, deer's-ears.

pyramid plant (noun)	columbo (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