black bamboo vs kuri-chiku

black bamboo and kuri-chiku both are nouns.

Word	Noun	Adjective	Verb	Adverb
black bamboo	Yes	No	No	No
kuri-chiku	Yes	No	No	No

As nouns, black bamboo and kuri-chiku are synonyms defined as:

black bamboo and kuri-chiku: small bamboo having thin green culms turning shining black

Other synonyms of black bamboo include Phyllostachys nigra.

black bamboo (noun)	kuri-chiku (noun)
small bamboo having thin green culms turning shining black	small bamboo having thin green culms turning shining black