bar-room plant vs cast-iron plant

bar-room plant and cast-iron plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
bar-room plant	Yes	No	No	No
cast-iron plant	Yes	No	No	No

As nouns, bar-room plant and cast-iron plant are synonyms defined as:

bar-room plant and cast-iron plant: evergreen perennial with large handsome basal leaves; grown primarily as a foliage houseplant

Other synonyms of bar-room plant include aspidistra, Aspidistra elatio.

bar-room plant (noun)	cast-iron plant (noun)
evergreen perennial with large handsome basal leaves; grown primarily as a foliage houseplant	evergreen perennial with large handsome basal leaves; grown primarily as a foliage houseplant