common unicorn plant vs ram's horn

common unicorn plant and ram's horn both are nouns.

Word	Noun	Adjective	Verb	Adverb
common unicorn plant	Yes	No	No	No
ram's horn	Yes	No	No	No

As nouns, common unicorn plant and ram's horn are synonyms defined as:

common unicorn plant and ram's horn: annual of southern United States to Mexico having large whitish or yellowish flowers mottled with purple and a long curving beak

Other synonyms of common unicorn plant include common devil's claw, devil's claw, elephant-tusk, Proboscidea louisianica, proboscis flower.

common unicorn plant (noun)	ram's horn (noun)
annual of southern United States to Mexico having large whitish or yellowish flowers mottled with purple and a long curving beak	annual of southern United States to Mexico having large whitish or yellowish flowers mottled with purple and a long curving beak